/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 13:05:02,356 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 13:05:02,395 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 13:05:02,398 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 13:05:02,398 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 13:05:02,412 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 13:05:02,414 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 13:05:02,414 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 13:05:02,415 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 13:05:02,418 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 13:05:02,418 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 13:05:02,418 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 13:05:02,419 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 13:05:02,420 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 13:05:02,420 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 13:05:02,420 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 13:05:02,420 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 13:05:02,420 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 13:05:02,421 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 13:05:02,421 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 13:05:02,421 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 13:05:02,421 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 13:05:02,422 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 13:05:02,422 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 13:05:02,422 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 13:05:02,422 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 13:05:02,422 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 13:05:02,423 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 13:05:02,423 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 13:05:02,423 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 13:05:02,424 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 13:05:02,424 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 13:05:02,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 13:05:02,425 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 13:05:02,425 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 13:05:02,425 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 13:05:02,425 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 13:05:02,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 13:05:02,425 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 13:05:02,425 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 13:05:02,426 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 13:05:02,426 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 13:05:02,426 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 13:05:02,426 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 13:05:02,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 13:05:02,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 13:05:02,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 13:05:02,645 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 13:05:02,645 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 13:05:02,646 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2023-12-21 13:05:03,689 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 13:05:04,100 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 13:05:04,102 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2023-12-21 13:05:04,130 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34b64a9dc/c8a020d56cce493989920567c4983172/FLAGe8ca3f4bd [2023-12-21 13:05:04,141 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34b64a9dc/c8a020d56cce493989920567c4983172 [2023-12-21 13:05:04,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 13:05:04,143 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 13:05:04,144 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 13:05:04,144 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 13:05:04,148 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 13:05:04,149 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:05:04" (1/1) ... [2023-12-21 13:05:04,149 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d7b9b4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:05:04, skipping insertion in model container [2023-12-21 13:05:04,149 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:05:04" (1/1) ... [2023-12-21 13:05:04,200 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 13:05:04,389 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14164,14177] [2023-12-21 13:05:04,398 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14811,14824] [2023-12-21 13:05:04,408 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[16044,16057] [2023-12-21 13:05:04,416 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[17104,17117] [2023-12-21 13:05:04,450 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[25495,25508] [2023-12-21 13:05:04,496 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 13:05:04,507 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 13:05:04,593 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14164,14177] [2023-12-21 13:05:04,610 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14811,14824] [2023-12-21 13:05:04,616 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[16044,16057] [2023-12-21 13:05:04,622 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[17104,17117] [2023-12-21 13:05:04,651 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[25495,25508] [2023-12-21 13:05:04,683 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 13:05:04,703 INFO L206 MainTranslator]: Completed translation [2023-12-21 13:05:04,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:05:04 WrapperNode [2023-12-21 13:05:04,703 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 13:05:04,704 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 13:05:04,704 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 13:05:04,704 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 13:05:04,709 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:05:04" (1/1) ... [2023-12-21 13:05:04,722 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:05:04" (1/1) ... [2023-12-21 13:05:04,769 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1627 [2023-12-21 13:05:04,769 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 13:05:04,770 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 13:05:04,770 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 13:05:04,770 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 13:05:04,778 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:05:04" (1/1) ... [2023-12-21 13:05:04,778 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:05:04" (1/1) ... [2023-12-21 13:05:04,783 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:05:04" (1/1) ... [2023-12-21 13:05:04,803 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-21 13:05:04,803 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:05:04" (1/1) ... [2023-12-21 13:05:04,803 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:05:04" (1/1) ... [2023-12-21 13:05:04,817 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:05:04" (1/1) ... [2023-12-21 13:05:04,825 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:05:04" (1/1) ... [2023-12-21 13:05:04,828 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:05:04" (1/1) ... [2023-12-21 13:05:04,831 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:05:04" (1/1) ... [2023-12-21 13:05:04,837 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 13:05:04,838 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 13:05:04,838 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 13:05:04,838 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 13:05:04,839 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:05:04" (1/1) ... [2023-12-21 13:05:04,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 13:05:04,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:05:04,863 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-21 13:05:04,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-21 13:05:04,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 13:05:04,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 13:05:04,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 13:05:04,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 13:05:05,017 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 13:05:05,056 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 13:05:05,832 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 13:05:05,862 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 13:05:05,862 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-21 13:05:05,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:05:05 BoogieIcfgContainer [2023-12-21 13:05:05,863 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 13:05:05,864 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 13:05:05,864 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 13:05:05,867 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 13:05:05,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:05:04" (1/3) ... [2023-12-21 13:05:05,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f9cd0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:05:05, skipping insertion in model container [2023-12-21 13:05:05,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:05:04" (2/3) ... [2023-12-21 13:05:05,868 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f9cd0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:05:05, skipping insertion in model container [2023-12-21 13:05:05,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:05:05" (3/3) ... [2023-12-21 13:05:05,869 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2023-12-21 13:05:05,904 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 13:05:05,904 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-12-21 13:05:05,942 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 13:05:05,947 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@14702fa0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 13:05:05,947 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-12-21 13:05:05,952 INFO L276 IsEmpty]: Start isEmpty. Operand has 375 states, 369 states have (on average 1.8319783197831978) internal successors, (676), 374 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:05,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 13:05:05,972 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:05,973 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:05,974 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:05,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:05,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1543552980, now seen corresponding path program 1 times [2023-12-21 13:05:05,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:05,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450851068] [2023-12-21 13:05:05,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:05,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:06,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:06,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:06,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450851068] [2023-12-21 13:05:06,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450851068] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:06,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:06,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:05:06,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564714929] [2023-12-21 13:05:06,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:06,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:05:06,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:06,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:05:06,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:05:06,480 INFO L87 Difference]: Start difference. First operand has 375 states, 369 states have (on average 1.8319783197831978) internal successors, (676), 374 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:06,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:06,633 INFO L93 Difference]: Finished difference Result 679 states and 1213 transitions. [2023-12-21 13:05:06,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:05:06,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-21 13:05:06,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:06,651 INFO L225 Difference]: With dead ends: 679 [2023-12-21 13:05:06,651 INFO L226 Difference]: Without dead ends: 545 [2023-12-21 13:05:06,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:05:06,658 INFO L413 NwaCegarLoop]: 765 mSDtfsCounter, 390 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:06,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 1199 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:05:06,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2023-12-21 13:05:06,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 543. [2023-12-21 13:05:06,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 538 states have (on average 1.4814126394052045) internal successors, (797), 542 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:06,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 797 transitions. [2023-12-21 13:05:06,722 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 797 transitions. Word has length 138 [2023-12-21 13:05:06,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:06,723 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 797 transitions. [2023-12-21 13:05:06,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:06,724 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 797 transitions. [2023-12-21 13:05:06,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 13:05:06,727 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:06,727 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:06,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 13:05:06,728 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:06,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:06,728 INFO L85 PathProgramCache]: Analyzing trace with hash -228007275, now seen corresponding path program 1 times [2023-12-21 13:05:06,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:06,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950956876] [2023-12-21 13:05:06,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:06,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:06,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:06,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:06,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:06,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950956876] [2023-12-21 13:05:06,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950956876] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:06,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:06,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:05:06,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252253869] [2023-12-21 13:05:06,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:06,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:05:06,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:06,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:05:06,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:05:06,891 INFO L87 Difference]: Start difference. First operand 543 states and 797 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:06,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:06,995 INFO L93 Difference]: Finished difference Result 1092 states and 1657 transitions. [2023-12-21 13:05:06,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:05:06,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-21 13:05:06,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:07,001 INFO L225 Difference]: With dead ends: 1092 [2023-12-21 13:05:07,002 INFO L226 Difference]: Without dead ends: 901 [2023-12-21 13:05:07,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:05:07,005 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 312 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:07,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 977 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:05:07,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2023-12-21 13:05:07,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 899. [2023-12-21 13:05:07,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 899 states, 894 states have (on average 1.5033557046979866) internal successors, (1344), 898 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:07,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1344 transitions. [2023-12-21 13:05:07,027 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1344 transitions. Word has length 138 [2023-12-21 13:05:07,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:07,028 INFO L495 AbstractCegarLoop]: Abstraction has 899 states and 1344 transitions. [2023-12-21 13:05:07,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:07,028 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1344 transitions. [2023-12-21 13:05:07,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 13:05:07,030 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:07,030 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:07,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 13:05:07,030 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:07,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:07,031 INFO L85 PathProgramCache]: Analyzing trace with hash -228438251, now seen corresponding path program 1 times [2023-12-21 13:05:07,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:07,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322288299] [2023-12-21 13:05:07,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:07,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:07,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:07,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:07,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322288299] [2023-12-21 13:05:07,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322288299] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:07,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:07,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:05:07,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696400269] [2023-12-21 13:05:07,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:07,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 13:05:07,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:07,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 13:05:07,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 13:05:07,366 INFO L87 Difference]: Start difference. First operand 899 states and 1344 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:07,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:07,445 INFO L93 Difference]: Finished difference Result 2633 states and 3925 transitions. [2023-12-21 13:05:07,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 13:05:07,445 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-21 13:05:07,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:07,453 INFO L225 Difference]: With dead ends: 2633 [2023-12-21 13:05:07,454 INFO L226 Difference]: Without dead ends: 1742 [2023-12-21 13:05:07,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:05:07,462 INFO L413 NwaCegarLoop]: 937 mSDtfsCounter, 1071 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:07,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 1424 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:05:07,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2023-12-21 13:05:07,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1702. [2023-12-21 13:05:07,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1702 states, 1697 states have (on average 1.489098408956983) internal successors, (2527), 1701 states have internal predecessors, (2527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:07,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1702 states to 1702 states and 2527 transitions. [2023-12-21 13:05:07,505 INFO L78 Accepts]: Start accepts. Automaton has 1702 states and 2527 transitions. Word has length 138 [2023-12-21 13:05:07,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:07,505 INFO L495 AbstractCegarLoop]: Abstraction has 1702 states and 2527 transitions. [2023-12-21 13:05:07,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:07,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1702 states and 2527 transitions. [2023-12-21 13:05:07,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-21 13:05:07,508 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:07,508 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:07,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 13:05:07,508 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:07,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:07,509 INFO L85 PathProgramCache]: Analyzing trace with hash -802546345, now seen corresponding path program 1 times [2023-12-21 13:05:07,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:07,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476077479] [2023-12-21 13:05:07,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:07,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:07,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:07,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:07,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:07,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476077479] [2023-12-21 13:05:07,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476077479] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:07,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:07,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:05:07,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001941445] [2023-12-21 13:05:07,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:07,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:05:07,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:07,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:05:07,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:05:07,570 INFO L87 Difference]: Start difference. First operand 1702 states and 2527 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:07,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:07,600 INFO L93 Difference]: Finished difference Result 5070 states and 7521 transitions. [2023-12-21 13:05:07,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:05:07,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2023-12-21 13:05:07,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:07,609 INFO L225 Difference]: With dead ends: 5070 [2023-12-21 13:05:07,609 INFO L226 Difference]: Without dead ends: 3395 [2023-12-21 13:05:07,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:05:07,616 INFO L413 NwaCegarLoop]: 1058 mSDtfsCounter, 526 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 1585 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:07,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 1585 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:05:07,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3395 states. [2023-12-21 13:05:07,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3395 to 1704. [2023-12-21 13:05:07,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1704 states, 1699 states have (on average 1.4885226603884638) internal successors, (2529), 1703 states have internal predecessors, (2529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:07,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1704 states to 1704 states and 2529 transitions. [2023-12-21 13:05:07,652 INFO L78 Accepts]: Start accepts. Automaton has 1704 states and 2529 transitions. Word has length 139 [2023-12-21 13:05:07,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:07,652 INFO L495 AbstractCegarLoop]: Abstraction has 1704 states and 2529 transitions. [2023-12-21 13:05:07,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:07,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1704 states and 2529 transitions. [2023-12-21 13:05:07,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-21 13:05:07,655 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:07,655 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:07,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 13:05:07,655 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:07,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:07,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1692246653, now seen corresponding path program 1 times [2023-12-21 13:05:07,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:07,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480782747] [2023-12-21 13:05:07,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:07,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:07,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:07,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:07,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:07,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480782747] [2023-12-21 13:05:07,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480782747] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:07,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:07,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:05:07,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845688894] [2023-12-21 13:05:07,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:07,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:05:07,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:07,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:05:07,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:05:07,730 INFO L87 Difference]: Start difference. First operand 1704 states and 2529 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:07,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:07,777 INFO L93 Difference]: Finished difference Result 4482 states and 6648 transitions. [2023-12-21 13:05:07,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:05:07,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2023-12-21 13:05:07,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:07,786 INFO L225 Difference]: With dead ends: 4482 [2023-12-21 13:05:07,786 INFO L226 Difference]: Without dead ends: 2955 [2023-12-21 13:05:07,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:05:07,788 INFO L413 NwaCegarLoop]: 792 mSDtfsCounter, 465 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:07,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 1285 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:05:07,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2955 states. [2023-12-21 13:05:07,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2955 to 2915. [2023-12-21 13:05:07,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2915 states, 2910 states have (on average 1.4673539518900343) internal successors, (4270), 2914 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:07,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2915 states to 2915 states and 4270 transitions. [2023-12-21 13:05:07,849 INFO L78 Accepts]: Start accepts. Automaton has 2915 states and 4270 transitions. Word has length 140 [2023-12-21 13:05:07,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:07,849 INFO L495 AbstractCegarLoop]: Abstraction has 2915 states and 4270 transitions. [2023-12-21 13:05:07,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:07,850 INFO L276 IsEmpty]: Start isEmpty. Operand 2915 states and 4270 transitions. [2023-12-21 13:05:07,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-21 13:05:07,853 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:07,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:07,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 13:05:07,853 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:07,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:07,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1587774842, now seen corresponding path program 1 times [2023-12-21 13:05:07,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:07,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639370779] [2023-12-21 13:05:07,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:07,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:07,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:08,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:08,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:08,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639370779] [2023-12-21 13:05:08,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639370779] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:08,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:08,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:05:08,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552457774] [2023-12-21 13:05:08,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:08,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:05:08,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:08,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:05:08,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:05:08,079 INFO L87 Difference]: Start difference. First operand 2915 states and 4270 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:08,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:08,163 INFO L93 Difference]: Finished difference Result 8364 states and 12233 transitions. [2023-12-21 13:05:08,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 13:05:08,166 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2023-12-21 13:05:08,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:08,180 INFO L225 Difference]: With dead ends: 8364 [2023-12-21 13:05:08,181 INFO L226 Difference]: Without dead ends: 5462 [2023-12-21 13:05:08,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:05:08,184 INFO L413 NwaCegarLoop]: 880 mSDtfsCounter, 1607 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1607 SdHoareTripleChecker+Valid, 1359 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:08,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1607 Valid, 1359 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:05:08,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5462 states. [2023-12-21 13:05:08,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5462 to 5432. [2023-12-21 13:05:08,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5432 states, 5427 states have (on average 1.4505251520176894) internal successors, (7872), 5431 states have internal predecessors, (7872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:08,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 7872 transitions. [2023-12-21 13:05:08,266 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 7872 transitions. Word has length 140 [2023-12-21 13:05:08,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:08,267 INFO L495 AbstractCegarLoop]: Abstraction has 5432 states and 7872 transitions. [2023-12-21 13:05:08,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:08,268 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 7872 transitions. [2023-12-21 13:05:08,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-21 13:05:08,272 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:08,273 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:08,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 13:05:08,273 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:08,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:08,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1760745588, now seen corresponding path program 1 times [2023-12-21 13:05:08,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:08,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612261981] [2023-12-21 13:05:08,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:08,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:08,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:08,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:08,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612261981] [2023-12-21 13:05:08,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612261981] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:08,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:08,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:05:08,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303044018] [2023-12-21 13:05:08,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:08,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 13:05:08,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:08,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 13:05:08,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 13:05:08,455 INFO L87 Difference]: Start difference. First operand 5432 states and 7872 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:08,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:08,545 INFO L93 Difference]: Finished difference Result 15889 states and 22965 transitions. [2023-12-21 13:05:08,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 13:05:08,545 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2023-12-21 13:05:08,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:08,583 INFO L225 Difference]: With dead ends: 15889 [2023-12-21 13:05:08,584 INFO L226 Difference]: Without dead ends: 10512 [2023-12-21 13:05:08,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:05:08,592 INFO L413 NwaCegarLoop]: 924 mSDtfsCounter, 1057 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 1415 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:08,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1057 Valid, 1415 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:05:08,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10512 states. [2023-12-21 13:05:08,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10512 to 10464. [2023-12-21 13:05:08,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10464 states, 10459 states have (on average 1.4335022468687255) internal successors, (14993), 10463 states have internal predecessors, (14993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:08,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10464 states to 10464 states and 14993 transitions. [2023-12-21 13:05:08,832 INFO L78 Accepts]: Start accepts. Automaton has 10464 states and 14993 transitions. Word has length 140 [2023-12-21 13:05:08,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:08,832 INFO L495 AbstractCegarLoop]: Abstraction has 10464 states and 14993 transitions. [2023-12-21 13:05:08,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:08,833 INFO L276 IsEmpty]: Start isEmpty. Operand 10464 states and 14993 transitions. [2023-12-21 13:05:08,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-21 13:05:08,843 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:08,844 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:08,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 13:05:08,844 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:08,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:08,844 INFO L85 PathProgramCache]: Analyzing trace with hash 483683798, now seen corresponding path program 1 times [2023-12-21 13:05:08,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:08,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579256961] [2023-12-21 13:05:08,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:08,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:08,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:08,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:08,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579256961] [2023-12-21 13:05:08,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579256961] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:08,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:08,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:05:08,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775838672] [2023-12-21 13:05:08,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:08,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:05:08,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:08,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:05:08,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:05:08,893 INFO L87 Difference]: Start difference. First operand 10464 states and 14993 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:08,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:08,990 INFO L93 Difference]: Finished difference Result 31242 states and 44748 transitions. [2023-12-21 13:05:08,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:05:08,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2023-12-21 13:05:08,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:09,023 INFO L225 Difference]: With dead ends: 31242 [2023-12-21 13:05:09,023 INFO L226 Difference]: Without dead ends: 20868 [2023-12-21 13:05:09,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:05:09,040 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 512 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:09,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 1134 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:05:09,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20868 states. [2023-12-21 13:05:09,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20868 to 10474. [2023-12-21 13:05:09,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10474 states, 10469 states have (on average 1.4330881650587448) internal successors, (15003), 10473 states have internal predecessors, (15003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:09,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10474 states to 10474 states and 15003 transitions. [2023-12-21 13:05:09,418 INFO L78 Accepts]: Start accepts. Automaton has 10474 states and 15003 transitions. Word has length 141 [2023-12-21 13:05:09,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:09,418 INFO L495 AbstractCegarLoop]: Abstraction has 10474 states and 15003 transitions. [2023-12-21 13:05:09,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:09,419 INFO L276 IsEmpty]: Start isEmpty. Operand 10474 states and 15003 transitions. [2023-12-21 13:05:09,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-21 13:05:09,445 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:09,445 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:09,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 13:05:09,446 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:09,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:09,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1554550099, now seen corresponding path program 1 times [2023-12-21 13:05:09,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:09,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581134317] [2023-12-21 13:05:09,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:09,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:09,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:09,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:09,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:09,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581134317] [2023-12-21 13:05:09,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581134317] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:09,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:09,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:05:09,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532272308] [2023-12-21 13:05:09,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:09,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 13:05:09,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:09,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 13:05:09,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 13:05:09,724 INFO L87 Difference]: Start difference. First operand 10474 states and 15003 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:09,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:09,839 INFO L93 Difference]: Finished difference Result 30542 states and 43658 transitions. [2023-12-21 13:05:09,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 13:05:09,840 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2023-12-21 13:05:09,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:09,868 INFO L225 Difference]: With dead ends: 30542 [2023-12-21 13:05:09,868 INFO L226 Difference]: Without dead ends: 20168 [2023-12-21 13:05:09,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:05:09,884 INFO L413 NwaCegarLoop]: 913 mSDtfsCounter, 1051 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 1404 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:09,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1051 Valid, 1404 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:05:09,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20168 states. [2023-12-21 13:05:10,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20168 to 20120. [2023-12-21 13:05:10,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20120 states, 20115 states have (on average 1.4158090976882922) internal successors, (28479), 20119 states have internal predecessors, (28479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:10,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20120 states to 20120 states and 28479 transitions. [2023-12-21 13:05:10,395 INFO L78 Accepts]: Start accepts. Automaton has 20120 states and 28479 transitions. Word has length 142 [2023-12-21 13:05:10,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:10,395 INFO L495 AbstractCegarLoop]: Abstraction has 20120 states and 28479 transitions. [2023-12-21 13:05:10,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:10,395 INFO L276 IsEmpty]: Start isEmpty. Operand 20120 states and 28479 transitions. [2023-12-21 13:05:10,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-21 13:05:10,427 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:10,427 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:10,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 13:05:10,427 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:10,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:10,428 INFO L85 PathProgramCache]: Analyzing trace with hash 335245781, now seen corresponding path program 1 times [2023-12-21 13:05:10,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:10,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649465012] [2023-12-21 13:05:10,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:10,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:10,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:10,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:10,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:10,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649465012] [2023-12-21 13:05:10,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649465012] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:10,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:10,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:05:10,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234594561] [2023-12-21 13:05:10,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:10,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:05:10,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:10,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:05:10,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:05:10,493 INFO L87 Difference]: Start difference. First operand 20120 states and 28479 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:10,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:10,638 INFO L93 Difference]: Finished difference Result 59210 states and 83983 transitions. [2023-12-21 13:05:10,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:05:10,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2023-12-21 13:05:10,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:10,699 INFO L225 Difference]: With dead ends: 59210 [2023-12-21 13:05:10,699 INFO L226 Difference]: Without dead ends: 39964 [2023-12-21 13:05:10,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:05:10,826 INFO L413 NwaCegarLoop]: 613 mSDtfsCounter, 498 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:10,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 1140 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:05:10,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39964 states. [2023-12-21 13:05:11,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39964 to 20140. [2023-12-21 13:05:11,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20140 states, 20135 states have (on average 1.4153960764837348) internal successors, (28499), 20139 states have internal predecessors, (28499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:11,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20140 states to 20140 states and 28499 transitions. [2023-12-21 13:05:11,308 INFO L78 Accepts]: Start accepts. Automaton has 20140 states and 28499 transitions. Word has length 143 [2023-12-21 13:05:11,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:11,308 INFO L495 AbstractCegarLoop]: Abstraction has 20140 states and 28499 transitions. [2023-12-21 13:05:11,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:11,309 INFO L276 IsEmpty]: Start isEmpty. Operand 20140 states and 28499 transitions. [2023-12-21 13:05:11,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-21 13:05:11,325 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:11,325 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:11,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 13:05:11,326 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:11,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:11,326 INFO L85 PathProgramCache]: Analyzing trace with hash -600560206, now seen corresponding path program 1 times [2023-12-21 13:05:11,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:11,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283088607] [2023-12-21 13:05:11,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:11,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:11,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:11,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:11,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:11,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283088607] [2023-12-21 13:05:11,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283088607] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:11,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:11,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:05:11,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784330084] [2023-12-21 13:05:11,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:11,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 13:05:11,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:11,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 13:05:11,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 13:05:11,496 INFO L87 Difference]: Start difference. First operand 20140 states and 28499 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:11,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:11,685 INFO L93 Difference]: Finished difference Result 34310 states and 48612 transitions. [2023-12-21 13:05:11,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 13:05:11,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2023-12-21 13:05:11,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:11,704 INFO L225 Difference]: With dead ends: 34310 [2023-12-21 13:05:11,704 INFO L226 Difference]: Without dead ends: 14689 [2023-12-21 13:05:11,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:05:11,717 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 65 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:11,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1638 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:05:11,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14689 states. [2023-12-21 13:05:11,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14689 to 14689. [2023-12-21 13:05:11,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14689 states, 14684 states have (on average 1.4127621901389267) internal successors, (20745), 14688 states have internal predecessors, (20745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:11,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14689 states to 14689 states and 20745 transitions. [2023-12-21 13:05:11,896 INFO L78 Accepts]: Start accepts. Automaton has 14689 states and 20745 transitions. Word has length 144 [2023-12-21 13:05:11,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:11,897 INFO L495 AbstractCegarLoop]: Abstraction has 14689 states and 20745 transitions. [2023-12-21 13:05:11,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:11,897 INFO L276 IsEmpty]: Start isEmpty. Operand 14689 states and 20745 transitions. [2023-12-21 13:05:11,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-21 13:05:11,909 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:11,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:11,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 13:05:11,909 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:11,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:11,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1587305715, now seen corresponding path program 1 times [2023-12-21 13:05:11,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:11,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958671906] [2023-12-21 13:05:11,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:11,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:11,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:12,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:12,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:12,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958671906] [2023-12-21 13:05:12,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958671906] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:12,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:12,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:05:12,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983062326] [2023-12-21 13:05:12,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:12,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:05:12,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:12,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:05:12,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:05:12,036 INFO L87 Difference]: Start difference. First operand 14689 states and 20745 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:12,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:12,141 INFO L93 Difference]: Finished difference Result 39085 states and 55252 transitions. [2023-12-21 13:05:12,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:05:12,141 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2023-12-21 13:05:12,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:12,181 INFO L225 Difference]: With dead ends: 39085 [2023-12-21 13:05:12,181 INFO L226 Difference]: Without dead ends: 25521 [2023-12-21 13:05:12,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:05:12,198 INFO L413 NwaCegarLoop]: 873 mSDtfsCounter, 451 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:12,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 1355 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:05:12,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25521 states. [2023-12-21 13:05:12,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25521 to 25495. [2023-12-21 13:05:12,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25495 states, 25490 states have (on average 1.3905060808160064) internal successors, (35444), 25494 states have internal predecessors, (35444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:12,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25495 states to 25495 states and 35444 transitions. [2023-12-21 13:05:12,756 INFO L78 Accepts]: Start accepts. Automaton has 25495 states and 35444 transitions. Word has length 152 [2023-12-21 13:05:12,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:12,756 INFO L495 AbstractCegarLoop]: Abstraction has 25495 states and 35444 transitions. [2023-12-21 13:05:12,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:12,757 INFO L276 IsEmpty]: Start isEmpty. Operand 25495 states and 35444 transitions. [2023-12-21 13:05:12,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-21 13:05:12,780 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:12,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:12,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 13:05:12,781 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:12,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:12,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1309382736, now seen corresponding path program 1 times [2023-12-21 13:05:12,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:12,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922811968] [2023-12-21 13:05:12,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:12,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:12,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:12,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:12,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922811968] [2023-12-21 13:05:12,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922811968] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:12,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:12,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:05:12,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959931197] [2023-12-21 13:05:12,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:12,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:05:12,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:12,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:05:12,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:05:12,853 INFO L87 Difference]: Start difference. First operand 25495 states and 35444 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:13,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:13,366 INFO L93 Difference]: Finished difference Result 71549 states and 100138 transitions. [2023-12-21 13:05:13,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:05:13,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2023-12-21 13:05:13,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:13,457 INFO L225 Difference]: With dead ends: 71549 [2023-12-21 13:05:13,458 INFO L226 Difference]: Without dead ends: 49641 [2023-12-21 13:05:13,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:05:13,474 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 392 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:13,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 825 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 13:05:13,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49641 states. [2023-12-21 13:05:14,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49641 to 49577. [2023-12-21 13:05:14,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49577 states, 49572 states have (on average 1.3813039619139837) internal successors, (68474), 49576 states have internal predecessors, (68474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:14,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49577 states to 49577 states and 68474 transitions. [2023-12-21 13:05:14,282 INFO L78 Accepts]: Start accepts. Automaton has 49577 states and 68474 transitions. Word has length 152 [2023-12-21 13:05:14,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:14,283 INFO L495 AbstractCegarLoop]: Abstraction has 49577 states and 68474 transitions. [2023-12-21 13:05:14,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:14,283 INFO L276 IsEmpty]: Start isEmpty. Operand 49577 states and 68474 transitions. [2023-12-21 13:05:14,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-21 13:05:14,317 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:14,317 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:14,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 13:05:14,317 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:14,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:14,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1148251723, now seen corresponding path program 1 times [2023-12-21 13:05:14,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:14,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101150502] [2023-12-21 13:05:14,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:14,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:15,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:15,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:15,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101150502] [2023-12-21 13:05:15,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101150502] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:15,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:15,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-21 13:05:15,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211630906] [2023-12-21 13:05:15,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:15,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 13:05:15,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:15,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 13:05:15,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-12-21 13:05:15,528 INFO L87 Difference]: Start difference. First operand 49577 states and 68474 transitions. Second operand has 13 states, 13 states have (on average 11.692307692307692) internal successors, (152), 13 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:17,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:17,046 INFO L93 Difference]: Finished difference Result 124165 states and 178473 transitions. [2023-12-21 13:05:17,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 13:05:17,047 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.692307692307692) internal successors, (152), 13 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2023-12-21 13:05:17,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:17,197 INFO L225 Difference]: With dead ends: 124165 [2023-12-21 13:05:17,197 INFO L226 Difference]: Without dead ends: 107083 [2023-12-21 13:05:17,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=219, Invalid=651, Unknown=0, NotChecked=0, Total=870 [2023-12-21 13:05:17,232 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 6125 mSDsluCounter, 5050 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6125 SdHoareTripleChecker+Valid, 5553 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:17,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6125 Valid, 5553 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1080 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 13:05:17,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107083 states. [2023-12-21 13:05:18,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107083 to 55035. [2023-12-21 13:05:18,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55035 states, 55030 states have (on average 1.3628929674722878) internal successors, (75000), 55034 states have internal predecessors, (75000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:18,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55035 states to 55035 states and 75000 transitions. [2023-12-21 13:05:18,481 INFO L78 Accepts]: Start accepts. Automaton has 55035 states and 75000 transitions. Word has length 152 [2023-12-21 13:05:18,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:18,481 INFO L495 AbstractCegarLoop]: Abstraction has 55035 states and 75000 transitions. [2023-12-21 13:05:18,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.692307692307692) internal successors, (152), 13 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:18,482 INFO L276 IsEmpty]: Start isEmpty. Operand 55035 states and 75000 transitions. [2023-12-21 13:05:18,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-21 13:05:18,523 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:18,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:18,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 13:05:18,524 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:18,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:18,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1453887389, now seen corresponding path program 1 times [2023-12-21 13:05:18,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:18,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582862881] [2023-12-21 13:05:18,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:18,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:18,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:18,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:18,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:18,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582862881] [2023-12-21 13:05:18,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582862881] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:18,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:18,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:05:18,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449292841] [2023-12-21 13:05:18,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:18,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 13:05:18,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:18,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 13:05:18,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 13:05:18,718 INFO L87 Difference]: Start difference. First operand 55035 states and 75000 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:18,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:18,930 INFO L93 Difference]: Finished difference Result 91936 states and 125148 transitions. [2023-12-21 13:05:18,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 13:05:18,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2023-12-21 13:05:18,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:18,990 INFO L225 Difference]: With dead ends: 91936 [2023-12-21 13:05:18,991 INFO L226 Difference]: Without dead ends: 48914 [2023-12-21 13:05:19,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:05:19,031 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 53 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1627 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:19,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 1627 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:05:19,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48914 states. [2023-12-21 13:05:19,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48914 to 48914. [2023-12-21 13:05:19,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48914 states, 48909 states have (on average 1.3622441677400887) internal successors, (66626), 48913 states have internal predecessors, (66626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:19,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48914 states to 48914 states and 66626 transitions. [2023-12-21 13:05:19,728 INFO L78 Accepts]: Start accepts. Automaton has 48914 states and 66626 transitions. Word has length 152 [2023-12-21 13:05:19,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:19,729 INFO L495 AbstractCegarLoop]: Abstraction has 48914 states and 66626 transitions. [2023-12-21 13:05:19,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:19,729 INFO L276 IsEmpty]: Start isEmpty. Operand 48914 states and 66626 transitions. [2023-12-21 13:05:19,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 13:05:19,768 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:19,768 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:19,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 13:05:19,769 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:19,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:19,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1096871536, now seen corresponding path program 1 times [2023-12-21 13:05:19,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:19,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543514072] [2023-12-21 13:05:19,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:19,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:20,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:20,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:20,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543514072] [2023-12-21 13:05:20,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543514072] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:20,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:20,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 13:05:20,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185820191] [2023-12-21 13:05:20,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:20,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:05:20,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:20,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:05:20,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:05:20,059 INFO L87 Difference]: Start difference. First operand 48914 states and 66626 transitions. Second operand has 8 states, 8 states have (on average 19.75) internal successors, (158), 8 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:20,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:20,299 INFO L93 Difference]: Finished difference Result 66338 states and 94093 transitions. [2023-12-21 13:05:20,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 13:05:20,300 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.75) internal successors, (158), 8 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 158 [2023-12-21 13:05:20,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:20,361 INFO L225 Difference]: With dead ends: 66338 [2023-12-21 13:05:20,361 INFO L226 Difference]: Without dead ends: 48916 [2023-12-21 13:05:20,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:05:20,388 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 858 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:20,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 1296 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:05:20,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48916 states. [2023-12-21 13:05:20,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48916 to 48914. [2023-12-21 13:05:20,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48914 states, 48909 states have (on average 1.3556809585147929) internal successors, (66305), 48913 states have internal predecessors, (66305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:20,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48914 states to 48914 states and 66305 transitions. [2023-12-21 13:05:20,978 INFO L78 Accepts]: Start accepts. Automaton has 48914 states and 66305 transitions. Word has length 158 [2023-12-21 13:05:20,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:20,979 INFO L495 AbstractCegarLoop]: Abstraction has 48914 states and 66305 transitions. [2023-12-21 13:05:20,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.75) internal successors, (158), 8 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:20,979 INFO L276 IsEmpty]: Start isEmpty. Operand 48914 states and 66305 transitions. [2023-12-21 13:05:21,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-21 13:05:21,014 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:21,014 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:21,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 13:05:21,014 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:21,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:21,015 INFO L85 PathProgramCache]: Analyzing trace with hash -2048594912, now seen corresponding path program 1 times [2023-12-21 13:05:21,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:21,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454764261] [2023-12-21 13:05:21,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:21,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:21,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:21,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:21,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:21,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454764261] [2023-12-21 13:05:21,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454764261] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:21,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:21,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:05:21,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264350669] [2023-12-21 13:05:21,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:21,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 13:05:21,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:21,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 13:05:21,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 13:05:21,237 INFO L87 Difference]: Start difference. First operand 48914 states and 66305 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:21,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:21,417 INFO L93 Difference]: Finished difference Result 86464 states and 117047 transitions. [2023-12-21 13:05:21,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 13:05:21,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 158 [2023-12-21 13:05:21,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:21,460 INFO L225 Difference]: With dead ends: 86464 [2023-12-21 13:05:21,460 INFO L226 Difference]: Without dead ends: 37607 [2023-12-21 13:05:21,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:05:21,494 INFO L413 NwaCegarLoop]: 561 mSDtfsCounter, 45 mSDsluCounter, 1053 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 1614 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:21,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 1614 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:05:21,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37607 states. [2023-12-21 13:05:21,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37607 to 37607. [2023-12-21 13:05:21,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37607 states, 37602 states have (on average 1.3513642891335567) internal successors, (50814), 37606 states have internal predecessors, (50814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:21,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37607 states to 37607 states and 50814 transitions. [2023-12-21 13:05:22,000 INFO L78 Accepts]: Start accepts. Automaton has 37607 states and 50814 transitions. Word has length 158 [2023-12-21 13:05:22,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:22,000 INFO L495 AbstractCegarLoop]: Abstraction has 37607 states and 50814 transitions. [2023-12-21 13:05:22,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:22,000 INFO L276 IsEmpty]: Start isEmpty. Operand 37607 states and 50814 transitions. [2023-12-21 13:05:22,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-21 13:05:22,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:22,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:22,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 13:05:22,022 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:22,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:22,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1637244739, now seen corresponding path program 1 times [2023-12-21 13:05:22,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:22,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781602000] [2023-12-21 13:05:22,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:22,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:22,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:22,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:22,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:22,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781602000] [2023-12-21 13:05:22,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781602000] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:22,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:22,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:05:22,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934649929] [2023-12-21 13:05:22,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:22,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:05:22,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:22,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:05:22,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:05:22,225 INFO L87 Difference]: Start difference. First operand 37607 states and 50814 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:22,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:22,413 INFO L93 Difference]: Finished difference Result 70899 states and 95727 transitions. [2023-12-21 13:05:22,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 13:05:22,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 164 [2023-12-21 13:05:22,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:22,458 INFO L225 Difference]: With dead ends: 70899 [2023-12-21 13:05:22,458 INFO L226 Difference]: Without dead ends: 33656 [2023-12-21 13:05:22,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:05:22,489 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 1890 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1890 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:22,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1890 Valid, 1002 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:05:22,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33656 states. [2023-12-21 13:05:22,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33656 to 33528. [2023-12-21 13:05:22,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33528 states, 33523 states have (on average 1.3479998806789368) internal successors, (45189), 33527 states have internal predecessors, (45189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:22,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33528 states to 33528 states and 45189 transitions. [2023-12-21 13:05:22,954 INFO L78 Accepts]: Start accepts. Automaton has 33528 states and 45189 transitions. Word has length 164 [2023-12-21 13:05:22,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:22,955 INFO L495 AbstractCegarLoop]: Abstraction has 33528 states and 45189 transitions. [2023-12-21 13:05:22,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:22,955 INFO L276 IsEmpty]: Start isEmpty. Operand 33528 states and 45189 transitions. [2023-12-21 13:05:22,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-21 13:05:22,975 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:22,975 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:22,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 13:05:22,976 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:22,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:22,976 INFO L85 PathProgramCache]: Analyzing trace with hash 26922716, now seen corresponding path program 1 times [2023-12-21 13:05:22,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:22,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573496499] [2023-12-21 13:05:22,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:22,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:23,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:23,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:23,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:23,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573496499] [2023-12-21 13:05:23,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573496499] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:23,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:23,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:05:23,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026557907] [2023-12-21 13:05:23,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:23,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 13:05:23,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:23,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 13:05:23,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 13:05:23,155 INFO L87 Difference]: Start difference. First operand 33528 states and 45189 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:23,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:23,297 INFO L93 Difference]: Finished difference Result 43001 states and 59839 transitions. [2023-12-21 13:05:23,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 13:05:23,298 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 166 [2023-12-21 13:05:23,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:23,331 INFO L225 Difference]: With dead ends: 43001 [2023-12-21 13:05:23,331 INFO L226 Difference]: Without dead ends: 30707 [2023-12-21 13:05:23,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 13:05:23,349 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 598 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:23,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 966 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:05:23,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30707 states. [2023-12-21 13:05:24,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30707 to 30705. [2023-12-21 13:05:24,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30705 states, 30700 states have (on average 1.3201954397394138) internal successors, (40530), 30704 states have internal predecessors, (40530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:24,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30705 states to 30705 states and 40530 transitions. [2023-12-21 13:05:24,961 INFO L78 Accepts]: Start accepts. Automaton has 30705 states and 40530 transitions. Word has length 166 [2023-12-21 13:05:24,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:24,962 INFO L495 AbstractCegarLoop]: Abstraction has 30705 states and 40530 transitions. [2023-12-21 13:05:24,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:24,962 INFO L276 IsEmpty]: Start isEmpty. Operand 30705 states and 40530 transitions. [2023-12-21 13:05:24,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-21 13:05:24,979 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:24,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:24,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-21 13:05:24,979 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:24,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:24,980 INFO L85 PathProgramCache]: Analyzing trace with hash 812625131, now seen corresponding path program 1 times [2023-12-21 13:05:24,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:24,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960906366] [2023-12-21 13:05:24,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:24,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:25,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:25,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:25,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960906366] [2023-12-21 13:05:25,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960906366] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:25,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:25,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:05:25,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091393790] [2023-12-21 13:05:25,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:25,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 13:05:25,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:25,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 13:05:25,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 13:05:25,118 INFO L87 Difference]: Start difference. First operand 30705 states and 40530 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:25,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:25,355 INFO L93 Difference]: Finished difference Result 61814 states and 81560 transitions. [2023-12-21 13:05:25,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 13:05:25,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 166 [2023-12-21 13:05:25,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:25,385 INFO L225 Difference]: With dead ends: 61814 [2023-12-21 13:05:25,385 INFO L226 Difference]: Without dead ends: 31497 [2023-12-21 13:05:25,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:05:25,392 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 1063 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 1338 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:25,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1063 Valid, 1338 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:05:25,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31497 states. [2023-12-21 13:05:25,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31497 to 31062. [2023-12-21 13:05:25,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31062 states, 31057 states have (on average 1.3180603406639404) internal successors, (40935), 31061 states have internal predecessors, (40935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:25,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31062 states to 31062 states and 40935 transitions. [2023-12-21 13:05:25,760 INFO L78 Accepts]: Start accepts. Automaton has 31062 states and 40935 transitions. Word has length 166 [2023-12-21 13:05:25,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:25,760 INFO L495 AbstractCegarLoop]: Abstraction has 31062 states and 40935 transitions. [2023-12-21 13:05:25,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:25,760 INFO L276 IsEmpty]: Start isEmpty. Operand 31062 states and 40935 transitions. [2023-12-21 13:05:25,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-21 13:05:25,780 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:25,781 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:25,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-21 13:05:25,781 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:25,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:25,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1147575470, now seen corresponding path program 1 times [2023-12-21 13:05:25,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:25,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723495552] [2023-12-21 13:05:25,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:25,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:25,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:25,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:25,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:25,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723495552] [2023-12-21 13:05:25,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723495552] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:25,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:25,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:05:25,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492701705] [2023-12-21 13:05:25,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:25,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:05:25,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:25,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:05:25,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:05:25,828 INFO L87 Difference]: Start difference. First operand 31062 states and 40935 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:26,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:26,108 INFO L93 Difference]: Finished difference Result 79146 states and 105785 transitions. [2023-12-21 13:05:26,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:05:26,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 166 [2023-12-21 13:05:26,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:26,171 INFO L225 Difference]: With dead ends: 79146 [2023-12-21 13:05:26,171 INFO L226 Difference]: Without dead ends: 56505 [2023-12-21 13:05:26,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:05:26,201 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 407 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:26,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 931 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:05:26,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56505 states. [2023-12-21 13:05:27,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56505 to 56077. [2023-12-21 13:05:27,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56077 states, 56072 states have (on average 1.3182693679554858) internal successors, (73918), 56076 states have internal predecessors, (73918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:27,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56077 states to 56077 states and 73918 transitions. [2023-12-21 13:05:27,260 INFO L78 Accepts]: Start accepts. Automaton has 56077 states and 73918 transitions. Word has length 166 [2023-12-21 13:05:27,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:27,260 INFO L495 AbstractCegarLoop]: Abstraction has 56077 states and 73918 transitions. [2023-12-21 13:05:27,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:27,260 INFO L276 IsEmpty]: Start isEmpty. Operand 56077 states and 73918 transitions. [2023-12-21 13:05:27,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-21 13:05:27,289 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:27,289 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:27,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-21 13:05:27,289 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:27,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:27,290 INFO L85 PathProgramCache]: Analyzing trace with hash 2030159501, now seen corresponding path program 1 times [2023-12-21 13:05:27,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:27,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849525197] [2023-12-21 13:05:27,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:27,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:27,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:27,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:27,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:27,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849525197] [2023-12-21 13:05:27,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849525197] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:27,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:27,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 13:05:27,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662512362] [2023-12-21 13:05:27,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:27,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:05:27,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:27,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:05:27,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:05:27,660 INFO L87 Difference]: Start difference. First operand 56077 states and 73918 transitions. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:28,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:28,081 INFO L93 Difference]: Finished difference Result 98787 states and 133510 transitions. [2023-12-21 13:05:28,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 13:05:28,082 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 166 [2023-12-21 13:05:28,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:28,166 INFO L225 Difference]: With dead ends: 98787 [2023-12-21 13:05:28,166 INFO L226 Difference]: Without dead ends: 78429 [2023-12-21 13:05:28,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:05:28,180 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 840 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:28,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 1217 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:05:28,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78429 states. [2023-12-21 13:05:28,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78429 to 78427. [2023-12-21 13:05:29,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78427 states, 78422 states have (on average 1.3030144602279972) internal successors, (102185), 78426 states have internal predecessors, (102185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:29,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78427 states to 78427 states and 102185 transitions. [2023-12-21 13:05:29,119 INFO L78 Accepts]: Start accepts. Automaton has 78427 states and 102185 transitions. Word has length 166 [2023-12-21 13:05:29,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:29,120 INFO L495 AbstractCegarLoop]: Abstraction has 78427 states and 102185 transitions. [2023-12-21 13:05:29,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:29,120 INFO L276 IsEmpty]: Start isEmpty. Operand 78427 states and 102185 transitions. [2023-12-21 13:05:29,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-21 13:05:29,183 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:29,183 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:29,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-21 13:05:29,183 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:29,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:29,184 INFO L85 PathProgramCache]: Analyzing trace with hash 498919830, now seen corresponding path program 1 times [2023-12-21 13:05:29,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:29,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664390816] [2023-12-21 13:05:29,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:29,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:29,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:29,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:29,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664390816] [2023-12-21 13:05:29,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664390816] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:29,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:29,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 13:05:29,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38735952] [2023-12-21 13:05:29,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:29,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 13:05:29,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:29,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 13:05:29,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-21 13:05:29,727 INFO L87 Difference]: Start difference. First operand 78427 states and 102185 transitions. Second operand has 10 states, 10 states have (on average 16.6) internal successors, (166), 9 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:30,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:30,089 INFO L93 Difference]: Finished difference Result 103450 states and 135604 transitions. [2023-12-21 13:05:30,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:05:30,090 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.6) internal successors, (166), 9 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 166 [2023-12-21 13:05:30,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:30,139 INFO L225 Difference]: With dead ends: 103450 [2023-12-21 13:05:30,139 INFO L226 Difference]: Without dead ends: 43262 [2023-12-21 13:05:30,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-12-21 13:05:30,178 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 2384 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2384 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:30,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2384 Valid, 569 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:05:30,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43262 states. [2023-12-21 13:05:30,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43262 to 43262. [2023-12-21 13:05:30,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43262 states, 43257 states have (on average 1.2865201007929352) internal successors, (55651), 43261 states have internal predecessors, (55651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:31,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43262 states to 43262 states and 55651 transitions. [2023-12-21 13:05:31,077 INFO L78 Accepts]: Start accepts. Automaton has 43262 states and 55651 transitions. Word has length 166 [2023-12-21 13:05:31,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:31,078 INFO L495 AbstractCegarLoop]: Abstraction has 43262 states and 55651 transitions. [2023-12-21 13:05:31,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.6) internal successors, (166), 9 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:31,078 INFO L276 IsEmpty]: Start isEmpty. Operand 43262 states and 55651 transitions. [2023-12-21 13:05:31,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-21 13:05:31,109 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:31,109 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:31,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-21 13:05:31,109 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:31,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:31,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1901070816, now seen corresponding path program 1 times [2023-12-21 13:05:31,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:31,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295408529] [2023-12-21 13:05:31,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:31,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:31,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:31,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:31,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:31,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295408529] [2023-12-21 13:05:31,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295408529] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:31,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:31,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:05:31,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204887046] [2023-12-21 13:05:31,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:31,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 13:05:31,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:31,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 13:05:31,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 13:05:31,281 INFO L87 Difference]: Start difference. First operand 43262 states and 55651 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:31,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:31,411 INFO L93 Difference]: Finished difference Result 62214 states and 79936 transitions. [2023-12-21 13:05:31,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 13:05:31,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 166 [2023-12-21 13:05:31,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:31,454 INFO L225 Difference]: With dead ends: 62214 [2023-12-21 13:05:31,454 INFO L226 Difference]: Without dead ends: 37334 [2023-12-21 13:05:31,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:05:31,477 INFO L413 NwaCegarLoop]: 536 mSDtfsCounter, 21 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1566 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:31,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1566 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:05:31,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37334 states. [2023-12-21 13:05:31,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37334 to 37334. [2023-12-21 13:05:31,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37334 states, 37329 states have (on average 1.2865600471483296) internal successors, (48026), 37333 states have internal predecessors, (48026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:31,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37334 states to 37334 states and 48026 transitions. [2023-12-21 13:05:31,979 INFO L78 Accepts]: Start accepts. Automaton has 37334 states and 48026 transitions. Word has length 166 [2023-12-21 13:05:31,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:31,979 INFO L495 AbstractCegarLoop]: Abstraction has 37334 states and 48026 transitions. [2023-12-21 13:05:31,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:31,979 INFO L276 IsEmpty]: Start isEmpty. Operand 37334 states and 48026 transitions. [2023-12-21 13:05:32,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-21 13:05:32,008 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:32,009 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:32,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-21 13:05:32,009 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:32,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:32,009 INFO L85 PathProgramCache]: Analyzing trace with hash 948344565, now seen corresponding path program 1 times [2023-12-21 13:05:32,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:32,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289545614] [2023-12-21 13:05:32,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:32,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:32,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:32,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:32,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289545614] [2023-12-21 13:05:32,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289545614] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:32,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:32,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:05:32,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218413907] [2023-12-21 13:05:32,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:32,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:05:32,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:32,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:05:32,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:05:32,192 INFO L87 Difference]: Start difference. First operand 37334 states and 48026 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:32,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:32,558 INFO L93 Difference]: Finished difference Result 91912 states and 119740 transitions. [2023-12-21 13:05:32,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:05:32,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2023-12-21 13:05:32,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:32,636 INFO L225 Difference]: With dead ends: 91912 [2023-12-21 13:05:32,636 INFO L226 Difference]: Without dead ends: 66698 [2023-12-21 13:05:32,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:05:32,668 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 334 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:32,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 964 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 13:05:32,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66698 states. [2023-12-21 13:05:33,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66698 to 65815. [2023-12-21 13:05:33,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65815 states, 65810 states have (on average 1.2838626348579243) internal successors, (84491), 65814 states have internal predecessors, (84491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:33,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65815 states to 65815 states and 84491 transitions. [2023-12-21 13:05:33,655 INFO L78 Accepts]: Start accepts. Automaton has 65815 states and 84491 transitions. Word has length 168 [2023-12-21 13:05:33,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:33,656 INFO L495 AbstractCegarLoop]: Abstraction has 65815 states and 84491 transitions. [2023-12-21 13:05:33,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:33,656 INFO L276 IsEmpty]: Start isEmpty. Operand 65815 states and 84491 transitions. [2023-12-21 13:05:33,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-21 13:05:33,698 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:33,698 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:33,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-21 13:05:33,699 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:33,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:33,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1612624048, now seen corresponding path program 1 times [2023-12-21 13:05:33,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:33,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917019622] [2023-12-21 13:05:33,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:33,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:34,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:34,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:34,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917019622] [2023-12-21 13:05:34,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917019622] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:34,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:34,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-21 13:05:34,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343857875] [2023-12-21 13:05:34,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:34,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 13:05:34,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:34,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 13:05:34,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-21 13:05:34,416 INFO L87 Difference]: Start difference. First operand 65815 states and 84491 transitions. Second operand has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:35,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:35,961 INFO L93 Difference]: Finished difference Result 138259 states and 181864 transitions. [2023-12-21 13:05:35,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-21 13:05:35,962 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2023-12-21 13:05:35,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:36,094 INFO L225 Difference]: With dead ends: 138259 [2023-12-21 13:05:36,094 INFO L226 Difference]: Without dead ends: 125638 [2023-12-21 13:05:36,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=303, Invalid=819, Unknown=0, NotChecked=0, Total=1122 [2023-12-21 13:05:36,123 INFO L413 NwaCegarLoop]: 935 mSDtfsCounter, 6066 mSDsluCounter, 7695 mSDsCounter, 0 mSdLazyCounter, 1681 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6066 SdHoareTripleChecker+Valid, 8630 SdHoareTripleChecker+Invalid, 1743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:36,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6066 Valid, 8630 Invalid, 1743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1681 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 13:05:36,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125638 states. [2023-12-21 13:05:37,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125638 to 78213. [2023-12-21 13:05:37,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78213 states, 78208 states have (on average 1.260548792962357) internal successors, (98585), 78212 states have internal predecessors, (98585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:37,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78213 states to 78213 states and 98585 transitions. [2023-12-21 13:05:37,634 INFO L78 Accepts]: Start accepts. Automaton has 78213 states and 98585 transitions. Word has length 168 [2023-12-21 13:05:37,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:37,634 INFO L495 AbstractCegarLoop]: Abstraction has 78213 states and 98585 transitions. [2023-12-21 13:05:37,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:37,634 INFO L276 IsEmpty]: Start isEmpty. Operand 78213 states and 98585 transitions. [2023-12-21 13:05:37,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-21 13:05:37,703 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:37,703 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:37,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-21 13:05:37,716 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:37,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:37,716 INFO L85 PathProgramCache]: Analyzing trace with hash -707025626, now seen corresponding path program 1 times [2023-12-21 13:05:37,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:37,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267515682] [2023-12-21 13:05:37,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:37,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:37,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:38,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:38,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:38,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267515682] [2023-12-21 13:05:38,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267515682] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:38,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:38,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-21 13:05:38,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695601453] [2023-12-21 13:05:38,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:38,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 13:05:38,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:38,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 13:05:38,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-21 13:05:38,427 INFO L87 Difference]: Start difference. First operand 78213 states and 98585 transitions. Second operand has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:40,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:40,134 INFO L93 Difference]: Finished difference Result 124964 states and 162410 transitions. [2023-12-21 13:05:40,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-21 13:05:40,135 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2023-12-21 13:05:40,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:40,276 INFO L225 Difference]: With dead ends: 124964 [2023-12-21 13:05:40,276 INFO L226 Difference]: Without dead ends: 114758 [2023-12-21 13:05:40,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=353, Invalid=979, Unknown=0, NotChecked=0, Total=1332 [2023-12-21 13:05:40,309 INFO L413 NwaCegarLoop]: 1012 mSDtfsCounter, 4199 mSDsluCounter, 7797 mSDsCounter, 0 mSdLazyCounter, 2039 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4199 SdHoareTripleChecker+Valid, 8809 SdHoareTripleChecker+Invalid, 2127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:40,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4199 Valid, 8809 Invalid, 2127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2039 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 13:05:40,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114758 states. [2023-12-21 13:05:41,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114758 to 89735. [2023-12-21 13:05:41,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89735 states, 89730 states have (on average 1.2476875069653404) internal successors, (111955), 89734 states have internal predecessors, (111955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:41,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89735 states to 89735 states and 111955 transitions. [2023-12-21 13:05:41,944 INFO L78 Accepts]: Start accepts. Automaton has 89735 states and 111955 transitions. Word has length 168 [2023-12-21 13:05:41,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:41,944 INFO L495 AbstractCegarLoop]: Abstraction has 89735 states and 111955 transitions. [2023-12-21 13:05:41,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:41,944 INFO L276 IsEmpty]: Start isEmpty. Operand 89735 states and 111955 transitions. [2023-12-21 13:05:42,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-21 13:05:42,016 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:42,016 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:42,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-21 13:05:42,016 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:42,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:42,017 INFO L85 PathProgramCache]: Analyzing trace with hash -64218961, now seen corresponding path program 1 times [2023-12-21 13:05:42,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:42,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760203577] [2023-12-21 13:05:42,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:42,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:42,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:42,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:42,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:42,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760203577] [2023-12-21 13:05:42,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760203577] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:42,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:42,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-21 13:05:42,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34659018] [2023-12-21 13:05:42,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:42,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 13:05:42,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:42,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 13:05:42,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2023-12-21 13:05:42,722 INFO L87 Difference]: Start difference. First operand 89735 states and 111955 transitions. Second operand has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:44,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:44,607 INFO L93 Difference]: Finished difference Result 197041 states and 258459 transitions. [2023-12-21 13:05:44,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-21 13:05:44,608 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2023-12-21 13:05:44,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:44,829 INFO L225 Difference]: With dead ends: 197041 [2023-12-21 13:05:44,829 INFO L226 Difference]: Without dead ends: 187314 [2023-12-21 13:05:44,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2023-12-21 13:05:44,879 INFO L413 NwaCegarLoop]: 789 mSDtfsCounter, 7713 mSDsluCounter, 7308 mSDsCounter, 0 mSdLazyCounter, 1904 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7713 SdHoareTripleChecker+Valid, 8097 SdHoareTripleChecker+Invalid, 2029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:44,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7713 Valid, 8097 Invalid, 2029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1904 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 13:05:44,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187314 states. [2023-12-21 13:05:46,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187314 to 108344. [2023-12-21 13:05:46,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108344 states, 108339 states have (on average 1.2346061898300704) internal successors, (133756), 108343 states have internal predecessors, (133756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:47,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108344 states to 108344 states and 133756 transitions. [2023-12-21 13:05:47,045 INFO L78 Accepts]: Start accepts. Automaton has 108344 states and 133756 transitions. Word has length 168 [2023-12-21 13:05:47,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:47,045 INFO L495 AbstractCegarLoop]: Abstraction has 108344 states and 133756 transitions. [2023-12-21 13:05:47,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:47,046 INFO L276 IsEmpty]: Start isEmpty. Operand 108344 states and 133756 transitions. [2023-12-21 13:05:47,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-21 13:05:47,133 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:47,133 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:47,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-21 13:05:47,134 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:47,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:47,134 INFO L85 PathProgramCache]: Analyzing trace with hash -414146209, now seen corresponding path program 1 times [2023-12-21 13:05:47,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:47,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814067464] [2023-12-21 13:05:47,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:47,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:47,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:48,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:48,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:48,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814067464] [2023-12-21 13:05:48,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814067464] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:48,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:48,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-21 13:05:48,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173676995] [2023-12-21 13:05:48,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:48,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-21 13:05:48,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:48,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-21 13:05:48,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2023-12-21 13:05:48,800 INFO L87 Difference]: Start difference. First operand 108344 states and 133756 transitions. Second operand has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:53,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:53,471 INFO L93 Difference]: Finished difference Result 148752 states and 186045 transitions. [2023-12-21 13:05:53,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-12-21 13:05:53,472 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2023-12-21 13:05:53,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:53,629 INFO L225 Difference]: With dead ends: 148752 [2023-12-21 13:05:53,629 INFO L226 Difference]: Without dead ends: 143802 [2023-12-21 13:05:53,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=556, Invalid=2524, Unknown=0, NotChecked=0, Total=3080 [2023-12-21 13:05:53,665 INFO L413 NwaCegarLoop]: 800 mSDtfsCounter, 4846 mSDsluCounter, 11571 mSDsCounter, 0 mSdLazyCounter, 4155 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4846 SdHoareTripleChecker+Valid, 12371 SdHoareTripleChecker+Invalid, 4215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 4155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:53,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4846 Valid, 12371 Invalid, 4215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 4155 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-21 13:05:53,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143802 states. [2023-12-21 13:05:55,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143802 to 112976. [2023-12-21 13:05:55,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112976 states, 112971 states have (on average 1.2319621849855273) internal successors, (139176), 112975 states have internal predecessors, (139176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:55,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112976 states to 112976 states and 139176 transitions. [2023-12-21 13:05:55,930 INFO L78 Accepts]: Start accepts. Automaton has 112976 states and 139176 transitions. Word has length 168 [2023-12-21 13:05:55,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:55,930 INFO L495 AbstractCegarLoop]: Abstraction has 112976 states and 139176 transitions. [2023-12-21 13:05:55,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:55,930 INFO L276 IsEmpty]: Start isEmpty. Operand 112976 states and 139176 transitions. [2023-12-21 13:05:56,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-21 13:05:56,020 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:56,020 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:56,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-21 13:05:56,020 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:56,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:56,021 INFO L85 PathProgramCache]: Analyzing trace with hash 2102488286, now seen corresponding path program 1 times [2023-12-21 13:05:56,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:56,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318080372] [2023-12-21 13:05:56,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:56,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:56,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:56,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:56,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:56,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318080372] [2023-12-21 13:05:56,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318080372] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:56,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:56,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 13:05:56,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888468192] [2023-12-21 13:05:56,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:56,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 13:05:56,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:56,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 13:05:56,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-21 13:05:56,219 INFO L87 Difference]: Start difference. First operand 112976 states and 139176 transitions. Second operand has 10 states, 10 states have (on average 16.8) internal successors, (168), 9 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:56,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:05:56,989 INFO L93 Difference]: Finished difference Result 175993 states and 219018 transitions. [2023-12-21 13:05:56,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:05:56,990 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.8) internal successors, (168), 9 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2023-12-21 13:05:56,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:05:57,094 INFO L225 Difference]: With dead ends: 175993 [2023-12-21 13:05:57,094 INFO L226 Difference]: Without dead ends: 80305 [2023-12-21 13:05:57,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-12-21 13:05:57,169 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 2333 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2333 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:05:57,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2333 Valid, 559 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:05:57,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80305 states. [2023-12-21 13:05:58,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80305 to 72103. [2023-12-21 13:05:58,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72103 states, 72098 states have (on average 1.213736858165275) internal successors, (87508), 72102 states have internal predecessors, (87508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:58,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72103 states to 72103 states and 87508 transitions. [2023-12-21 13:05:58,367 INFO L78 Accepts]: Start accepts. Automaton has 72103 states and 87508 transitions. Word has length 168 [2023-12-21 13:05:58,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:05:58,368 INFO L495 AbstractCegarLoop]: Abstraction has 72103 states and 87508 transitions. [2023-12-21 13:05:58,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.8) internal successors, (168), 9 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:05:58,368 INFO L276 IsEmpty]: Start isEmpty. Operand 72103 states and 87508 transitions. [2023-12-21 13:05:58,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-21 13:05:58,442 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:05:58,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:05:58,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-21 13:05:58,442 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:05:58,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:05:58,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1528199527, now seen corresponding path program 1 times [2023-12-21 13:05:58,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:05:58,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004072766] [2023-12-21 13:05:58,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:05:58,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:05:58,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:05:59,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:05:59,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:05:59,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004072766] [2023-12-21 13:05:59,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004072766] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:05:59,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:05:59,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-21 13:05:59,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114357901] [2023-12-21 13:05:59,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:05:59,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-21 13:05:59,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:05:59,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-21 13:05:59,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2023-12-21 13:05:59,885 INFO L87 Difference]: Start difference. First operand 72103 states and 87508 transitions. Second operand has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:06:05,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:06:05,848 INFO L93 Difference]: Finished difference Result 109625 states and 139030 transitions. [2023-12-21 13:06:05,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-12-21 13:06:05,848 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2023-12-21 13:06:05,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:06:05,981 INFO L225 Difference]: With dead ends: 109625 [2023-12-21 13:06:05,982 INFO L226 Difference]: Without dead ends: 106986 [2023-12-21 13:06:06,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1018 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=787, Invalid=3503, Unknown=0, NotChecked=0, Total=4290 [2023-12-21 13:06:06,004 INFO L413 NwaCegarLoop]: 1041 mSDtfsCounter, 8294 mSDsluCounter, 15372 mSDsCounter, 0 mSdLazyCounter, 5791 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8294 SdHoareTripleChecker+Valid, 16413 SdHoareTripleChecker+Invalid, 5994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 5791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:06:06,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8294 Valid, 16413 Invalid, 5994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 5791 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-21 13:06:06,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106986 states. [2023-12-21 13:06:06,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106986 to 74577. [2023-12-21 13:06:07,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74577 states, 74572 states have (on average 1.2115539344526096) internal successors, (90348), 74576 states have internal predecessors, (90348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:06:07,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74577 states to 74577 states and 90348 transitions. [2023-12-21 13:06:07,097 INFO L78 Accepts]: Start accepts. Automaton has 74577 states and 90348 transitions. Word has length 168 [2023-12-21 13:06:07,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:06:07,097 INFO L495 AbstractCegarLoop]: Abstraction has 74577 states and 90348 transitions. [2023-12-21 13:06:07,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:06:07,097 INFO L276 IsEmpty]: Start isEmpty. Operand 74577 states and 90348 transitions. [2023-12-21 13:06:07,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-21 13:06:07,359 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:06:07,360 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:06:07,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-21 13:06:07,360 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:06:07,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:06:07,360 INFO L85 PathProgramCache]: Analyzing trace with hash 660214958, now seen corresponding path program 1 times [2023-12-21 13:06:07,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:06:07,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522581010] [2023-12-21 13:06:07,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:06:07,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:06:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:06:08,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:06:08,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:06:08,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522581010] [2023-12-21 13:06:08,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522581010] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:06:08,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:06:08,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-21 13:06:08,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402421299] [2023-12-21 13:06:08,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:06:08,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-21 13:06:08,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:06:08,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-21 13:06:08,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2023-12-21 13:06:08,803 INFO L87 Difference]: Start difference. First operand 74577 states and 90348 transitions. Second operand has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:06:16,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:06:16,461 INFO L93 Difference]: Finished difference Result 116211 states and 147209 transitions. [2023-12-21 13:06:16,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-12-21 13:06:16,461 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2023-12-21 13:06:16,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:06:16,580 INFO L225 Difference]: With dead ends: 116211 [2023-12-21 13:06:16,581 INFO L226 Difference]: Without dead ends: 111829 [2023-12-21 13:06:16,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1209 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1255, Invalid=4295, Unknown=0, NotChecked=0, Total=5550 [2023-12-21 13:06:16,602 INFO L413 NwaCegarLoop]: 1279 mSDtfsCounter, 6615 mSDsluCounter, 16368 mSDsCounter, 0 mSdLazyCounter, 6687 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6615 SdHoareTripleChecker+Valid, 17647 SdHoareTripleChecker+Invalid, 6854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 6687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-21 13:06:16,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6615 Valid, 17647 Invalid, 6854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 6687 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-21 13:06:16,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111829 states. [2023-12-21 13:06:17,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111829 to 76901. [2023-12-21 13:06:17,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76901 states, 76896 states have (on average 1.2078781731169372) internal successors, (92881), 76900 states have internal predecessors, (92881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:06:17,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76901 states to 76901 states and 92881 transitions. [2023-12-21 13:06:17,638 INFO L78 Accepts]: Start accepts. Automaton has 76901 states and 92881 transitions. Word has length 168 [2023-12-21 13:06:17,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:06:17,638 INFO L495 AbstractCegarLoop]: Abstraction has 76901 states and 92881 transitions. [2023-12-21 13:06:17,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:06:17,639 INFO L276 IsEmpty]: Start isEmpty. Operand 76901 states and 92881 transitions. [2023-12-21 13:06:17,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-21 13:06:17,707 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:06:17,707 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:06:17,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-21 13:06:17,707 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:06:17,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:06:17,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1380597043, now seen corresponding path program 1 times [2023-12-21 13:06:17,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:06:17,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645436357] [2023-12-21 13:06:17,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:06:17,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:06:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:06:19,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:06:19,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:06:19,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645436357] [2023-12-21 13:06:19,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645436357] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:06:19,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:06:19,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-21 13:06:19,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689442142] [2023-12-21 13:06:19,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:06:19,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-21 13:06:19,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:06:19,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-21 13:06:19,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2023-12-21 13:06:19,058 INFO L87 Difference]: Start difference. First operand 76901 states and 92881 transitions. Second operand has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:06:23,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:06:23,354 INFO L93 Difference]: Finished difference Result 89340 states and 107711 transitions. [2023-12-21 13:06:23,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-21 13:06:23,354 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2023-12-21 13:06:23,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:06:23,432 INFO L225 Difference]: With dead ends: 89340 [2023-12-21 13:06:23,432 INFO L226 Difference]: Without dead ends: 88056 [2023-12-21 13:06:23,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=646, Invalid=2006, Unknown=0, NotChecked=0, Total=2652 [2023-12-21 13:06:23,451 INFO L413 NwaCegarLoop]: 703 mSDtfsCounter, 2898 mSDsluCounter, 9550 mSDsCounter, 0 mSdLazyCounter, 3541 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2898 SdHoareTripleChecker+Valid, 10253 SdHoareTripleChecker+Invalid, 3572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 3541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:06:23,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2898 Valid, 10253 Invalid, 3572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 3541 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-21 13:06:23,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88056 states. [2023-12-21 13:06:24,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88056 to 78844. [2023-12-21 13:06:24,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78844 states, 78839 states have (on average 1.2068392546835958) internal successors, (95146), 78843 states have internal predecessors, (95146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:06:24,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78844 states to 78844 states and 95146 transitions. [2023-12-21 13:06:24,492 INFO L78 Accepts]: Start accepts. Automaton has 78844 states and 95146 transitions. Word has length 168 [2023-12-21 13:06:24,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:06:24,493 INFO L495 AbstractCegarLoop]: Abstraction has 78844 states and 95146 transitions. [2023-12-21 13:06:24,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:06:24,493 INFO L276 IsEmpty]: Start isEmpty. Operand 78844 states and 95146 transitions. [2023-12-21 13:06:24,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-21 13:06:24,565 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:06:24,565 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:06:24,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-21 13:06:24,565 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:06:24,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:06:24,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1637823672, now seen corresponding path program 1 times [2023-12-21 13:06:24,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:06:24,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054213240] [2023-12-21 13:06:24,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:06:24,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:06:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:06:24,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:06:24,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:06:24,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054213240] [2023-12-21 13:06:24,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054213240] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:06:24,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:06:24,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 13:06:24,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461737535] [2023-12-21 13:06:24,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:06:24,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 13:06:24,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:06:24,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 13:06:24,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-21 13:06:24,892 INFO L87 Difference]: Start difference. First operand 78844 states and 95146 transitions. Second operand has 10 states, 10 states have (on average 16.8) internal successors, (168), 9 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:06:25,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:06:25,216 INFO L93 Difference]: Finished difference Result 120767 states and 147305 transitions. [2023-12-21 13:06:25,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:06:25,216 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.8) internal successors, (168), 9 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2023-12-21 13:06:25,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:06:25,278 INFO L225 Difference]: With dead ends: 120767 [2023-12-21 13:06:25,279 INFO L226 Difference]: Without dead ends: 59269 [2023-12-21 13:06:25,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-12-21 13:06:25,612 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 1462 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1462 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:06:25,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1462 Valid, 606 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:06:25,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59269 states. [2023-12-21 13:06:26,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59269 to 52859. [2023-12-21 13:06:26,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52859 states, 52854 states have (on average 1.1901842812275325) internal successors, (62906), 52858 states have internal predecessors, (62906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:06:26,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52859 states to 52859 states and 62906 transitions. [2023-12-21 13:06:26,448 INFO L78 Accepts]: Start accepts. Automaton has 52859 states and 62906 transitions. Word has length 168 [2023-12-21 13:06:26,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:06:26,448 INFO L495 AbstractCegarLoop]: Abstraction has 52859 states and 62906 transitions. [2023-12-21 13:06:26,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.8) internal successors, (168), 9 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:06:26,448 INFO L276 IsEmpty]: Start isEmpty. Operand 52859 states and 62906 transitions. [2023-12-21 13:06:26,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-21 13:06:26,491 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:06:26,491 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:06:26,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-21 13:06:26,491 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:06:26,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:06:26,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1196505313, now seen corresponding path program 1 times [2023-12-21 13:06:26,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:06:26,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289199493] [2023-12-21 13:06:26,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:06:26,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:06:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:06:27,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:06:27,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:06:27,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289199493] [2023-12-21 13:06:27,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289199493] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:06:27,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:06:27,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-21 13:06:27,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619698941] [2023-12-21 13:06:27,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:06:27,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-21 13:06:27,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:06:27,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-21 13:06:27,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2023-12-21 13:06:27,788 INFO L87 Difference]: Start difference. First operand 52859 states and 62906 transitions. Second operand has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:06:33,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:06:33,994 INFO L93 Difference]: Finished difference Result 86850 states and 107270 transitions. [2023-12-21 13:06:33,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-12-21 13:06:33,994 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2023-12-21 13:06:33,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:06:34,066 INFO L225 Difference]: With dead ends: 86850 [2023-12-21 13:06:34,066 INFO L226 Difference]: Without dead ends: 85618 [2023-12-21 13:06:34,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=768, Invalid=2312, Unknown=0, NotChecked=0, Total=3080 [2023-12-21 13:06:34,075 INFO L413 NwaCegarLoop]: 1281 mSDtfsCounter, 5314 mSDsluCounter, 15717 mSDsCounter, 0 mSdLazyCounter, 6203 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5314 SdHoareTripleChecker+Valid, 16998 SdHoareTripleChecker+Invalid, 6272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 6203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:06:34,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5314 Valid, 16998 Invalid, 6272 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 6203 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-21 13:06:34,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85618 states. [2023-12-21 13:06:34,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85618 to 55767. [2023-12-21 13:06:34,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55767 states, 55762 states have (on average 1.189250744234425) internal successors, (66315), 55766 states have internal predecessors, (66315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:06:34,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55767 states to 55767 states and 66315 transitions. [2023-12-21 13:06:34,891 INFO L78 Accepts]: Start accepts. Automaton has 55767 states and 66315 transitions. Word has length 168 [2023-12-21 13:06:34,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:06:34,891 INFO L495 AbstractCegarLoop]: Abstraction has 55767 states and 66315 transitions. [2023-12-21 13:06:34,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:06:34,892 INFO L276 IsEmpty]: Start isEmpty. Operand 55767 states and 66315 transitions. [2023-12-21 13:06:34,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-21 13:06:34,949 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:06:34,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:06:34,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-21 13:06:34,949 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:06:34,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:06:34,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1074529962, now seen corresponding path program 1 times [2023-12-21 13:06:34,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:06:34,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077428075] [2023-12-21 13:06:34,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:06:34,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:06:34,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:06:36,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:06:36,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:06:36,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077428075] [2023-12-21 13:06:36,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077428075] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:06:36,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:06:36,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-21 13:06:36,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137416241] [2023-12-21 13:06:36,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:06:36,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-21 13:06:36,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:06:36,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-21 13:06:36,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2023-12-21 13:06:36,538 INFO L87 Difference]: Start difference. First operand 55767 states and 66315 transitions. Second operand has 21 states, 21 states have (on average 8.0) internal successors, (168), 20 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:06:43,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:06:43,872 INFO L93 Difference]: Finished difference Result 94940 states and 116681 transitions. [2023-12-21 13:06:43,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-12-21 13:06:43,872 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 8.0) internal successors, (168), 20 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2023-12-21 13:06:43,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:06:43,957 INFO L225 Difference]: With dead ends: 94940 [2023-12-21 13:06:43,957 INFO L226 Difference]: Without dead ends: 92520 [2023-12-21 13:06:43,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1235 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1062, Invalid=4050, Unknown=0, NotChecked=0, Total=5112 [2023-12-21 13:06:43,974 INFO L413 NwaCegarLoop]: 1254 mSDtfsCounter, 5798 mSDsluCounter, 16939 mSDsCounter, 0 mSdLazyCounter, 6071 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5798 SdHoareTripleChecker+Valid, 18193 SdHoareTripleChecker+Invalid, 6174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 6071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:06:43,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5798 Valid, 18193 Invalid, 6174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 6071 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-21 13:06:44,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92520 states. [2023-12-21 13:06:44,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92520 to 59294. [2023-12-21 13:06:44,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59294 states, 59289 states have (on average 1.1874209381166827) internal successors, (70401), 59293 states have internal predecessors, (70401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:06:44,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59294 states to 59294 states and 70401 transitions. [2023-12-21 13:06:44,932 INFO L78 Accepts]: Start accepts. Automaton has 59294 states and 70401 transitions. Word has length 168 [2023-12-21 13:06:44,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:06:44,948 INFO L495 AbstractCegarLoop]: Abstraction has 59294 states and 70401 transitions. [2023-12-21 13:06:44,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.0) internal successors, (168), 20 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:06:44,948 INFO L276 IsEmpty]: Start isEmpty. Operand 59294 states and 70401 transitions. [2023-12-21 13:06:45,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-21 13:06:45,035 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:06:45,035 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:06:45,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-21 13:06:45,036 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:06:45,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:06:45,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1549963865, now seen corresponding path program 1 times [2023-12-21 13:06:45,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:06:45,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871227220] [2023-12-21 13:06:45,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:06:45,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:06:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:06:45,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:06:45,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:06:45,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871227220] [2023-12-21 13:06:45,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871227220] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:06:45,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:06:45,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-21 13:06:45,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789897986] [2023-12-21 13:06:45,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:06:45,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 13:06:45,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:06:45,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 13:06:45,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2023-12-21 13:06:45,805 INFO L87 Difference]: Start difference. First operand 59294 states and 70401 transitions. Second operand has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:06:47,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:06:47,399 INFO L93 Difference]: Finished difference Result 121783 states and 150766 transitions. [2023-12-21 13:06:47,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-21 13:06:47,400 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2023-12-21 13:06:47,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:06:47,539 INFO L225 Difference]: With dead ends: 121783 [2023-12-21 13:06:47,539 INFO L226 Difference]: Without dead ends: 117511 [2023-12-21 13:06:47,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2023-12-21 13:06:47,576 INFO L413 NwaCegarLoop]: 988 mSDtfsCounter, 5251 mSDsluCounter, 8978 mSDsCounter, 0 mSdLazyCounter, 1714 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5251 SdHoareTripleChecker+Valid, 9966 SdHoareTripleChecker+Invalid, 1795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:06:47,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5251 Valid, 9966 Invalid, 1795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1714 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 13:06:47,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117511 states. [2023-12-21 13:06:48,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117511 to 68988. [2023-12-21 13:06:48,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68988 states, 68983 states have (on average 1.1812185610947625) internal successors, (81484), 68987 states have internal predecessors, (81484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:06:48,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68988 states to 68988 states and 81484 transitions. [2023-12-21 13:06:48,840 INFO L78 Accepts]: Start accepts. Automaton has 68988 states and 81484 transitions. Word has length 168 [2023-12-21 13:06:48,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:06:48,840 INFO L495 AbstractCegarLoop]: Abstraction has 68988 states and 81484 transitions. [2023-12-21 13:06:48,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:06:48,840 INFO L276 IsEmpty]: Start isEmpty. Operand 68988 states and 81484 transitions. [2023-12-21 13:06:49,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-21 13:06:49,076 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:06:49,076 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:06:49,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-21 13:06:49,076 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:06:49,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:06:49,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1858416729, now seen corresponding path program 1 times [2023-12-21 13:06:49,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:06:49,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472887544] [2023-12-21 13:06:49,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:06:49,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:06:49,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:06:50,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:06:50,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:06:50,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472887544] [2023-12-21 13:06:50,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472887544] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:06:50,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:06:50,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2023-12-21 13:06:50,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68387064] [2023-12-21 13:06:50,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:06:50,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-21 13:06:50,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:06:50,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-21 13:06:50,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2023-12-21 13:06:50,298 INFO L87 Difference]: Start difference. First operand 68988 states and 81484 transitions. Second operand has 22 states, 22 states have (on average 7.636363636363637) internal successors, (168), 21 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:06:53,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:06:53,833 INFO L93 Difference]: Finished difference Result 83823 states and 99800 transitions. [2023-12-21 13:06:53,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-21 13:06:53,833 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 7.636363636363637) internal successors, (168), 21 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2023-12-21 13:06:53,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:06:53,908 INFO L225 Difference]: With dead ends: 83823 [2023-12-21 13:06:53,909 INFO L226 Difference]: Without dead ends: 82579 [2023-12-21 13:06:53,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=364, Invalid=1196, Unknown=0, NotChecked=0, Total=1560 [2023-12-21 13:06:53,919 INFO L413 NwaCegarLoop]: 868 mSDtfsCounter, 3781 mSDsluCounter, 10949 mSDsCounter, 0 mSdLazyCounter, 3924 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3781 SdHoareTripleChecker+Valid, 11817 SdHoareTripleChecker+Invalid, 3932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 3924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-21 13:06:53,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3781 Valid, 11817 Invalid, 3932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 3924 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-21 13:06:53,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82579 states. [2023-12-21 13:06:54,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82579 to 72619. [2023-12-21 13:06:54,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72619 states, 72614 states have (on average 1.1803233536232682) internal successors, (85708), 72618 states have internal predecessors, (85708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:06:54,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72619 states to 72619 states and 85708 transitions. [2023-12-21 13:06:54,899 INFO L78 Accepts]: Start accepts. Automaton has 72619 states and 85708 transitions. Word has length 168 [2023-12-21 13:06:54,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:06:54,899 INFO L495 AbstractCegarLoop]: Abstraction has 72619 states and 85708 transitions. [2023-12-21 13:06:54,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.636363636363637) internal successors, (168), 21 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:06:54,900 INFO L276 IsEmpty]: Start isEmpty. Operand 72619 states and 85708 transitions. [2023-12-21 13:06:54,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-21 13:06:54,976 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:06:54,976 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:06:54,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-21 13:06:54,976 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:06:54,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:06:54,976 INFO L85 PathProgramCache]: Analyzing trace with hash 799569118, now seen corresponding path program 1 times [2023-12-21 13:06:54,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:06:54,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111674812] [2023-12-21 13:06:54,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:06:54,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:06:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:06:55,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:06:55,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:06:55,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111674812] [2023-12-21 13:06:55,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111674812] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:06:55,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:06:55,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-21 13:06:55,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315623129] [2023-12-21 13:06:55,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:06:55,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 13:06:55,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:06:55,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 13:06:55,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2023-12-21 13:06:55,580 INFO L87 Difference]: Start difference. First operand 72619 states and 85708 transitions. Second operand has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:06:57,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:06:57,725 INFO L93 Difference]: Finished difference Result 121667 states and 145845 transitions. [2023-12-21 13:06:57,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-12-21 13:06:57,725 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2023-12-21 13:06:57,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:06:57,881 INFO L225 Difference]: With dead ends: 121667 [2023-12-21 13:06:57,882 INFO L226 Difference]: Without dead ends: 118200 [2023-12-21 13:06:57,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=725, Invalid=1927, Unknown=0, NotChecked=0, Total=2652 [2023-12-21 13:06:57,917 INFO L413 NwaCegarLoop]: 1229 mSDtfsCounter, 4035 mSDsluCounter, 8517 mSDsCounter, 0 mSdLazyCounter, 2043 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4035 SdHoareTripleChecker+Valid, 9746 SdHoareTripleChecker+Invalid, 2180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 2043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:06:57,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4035 Valid, 9746 Invalid, 2180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 2043 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 13:06:58,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118200 states. [2023-12-21 13:06:59,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118200 to 97734. [2023-12-21 13:06:59,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97734 states, 97729 states have (on average 1.1717709175372715) internal successors, (114516), 97733 states have internal predecessors, (114516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:06:59,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97734 states to 97734 states and 114516 transitions. [2023-12-21 13:06:59,344 INFO L78 Accepts]: Start accepts. Automaton has 97734 states and 114516 transitions. Word has length 168 [2023-12-21 13:06:59,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:06:59,344 INFO L495 AbstractCegarLoop]: Abstraction has 97734 states and 114516 transitions. [2023-12-21 13:06:59,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:06:59,344 INFO L276 IsEmpty]: Start isEmpty. Operand 97734 states and 114516 transitions. [2023-12-21 13:06:59,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-21 13:06:59,628 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:06:59,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:06:59,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-21 13:06:59,630 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:06:59,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:06:59,630 INFO L85 PathProgramCache]: Analyzing trace with hash 449426203, now seen corresponding path program 1 times [2023-12-21 13:06:59,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:06:59,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985882102] [2023-12-21 13:06:59,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:06:59,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:06:59,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:07:00,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:07:00,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:07:00,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985882102] [2023-12-21 13:07:00,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985882102] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:07:00,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:07:00,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-21 13:07:00,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951094916] [2023-12-21 13:07:00,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:07:00,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 13:07:00,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:07:00,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 13:07:00,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-21 13:07:00,035 INFO L87 Difference]: Start difference. First operand 97734 states and 114516 transitions. Second operand has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:01,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:07:01,662 INFO L93 Difference]: Finished difference Result 165003 states and 195389 transitions. [2023-12-21 13:07:01,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-21 13:07:01,663 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2023-12-21 13:07:01,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:07:01,856 INFO L225 Difference]: With dead ends: 165003 [2023-12-21 13:07:01,856 INFO L226 Difference]: Without dead ends: 159955 [2023-12-21 13:07:02,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=353, Invalid=979, Unknown=0, NotChecked=0, Total=1332 [2023-12-21 13:07:02,073 INFO L413 NwaCegarLoop]: 1236 mSDtfsCounter, 4231 mSDsluCounter, 8808 mSDsCounter, 0 mSdLazyCounter, 1958 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4231 SdHoareTripleChecker+Valid, 10044 SdHoareTripleChecker+Invalid, 2018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:07:02,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4231 Valid, 10044 Invalid, 2018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1958 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 13:07:02,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159955 states. [2023-12-21 13:07:03,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159955 to 134189. [2023-12-21 13:07:03,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134189 states, 134184 states have (on average 1.1635440887140047) internal successors, (156129), 134188 states have internal predecessors, (156129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:04,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134189 states to 134189 states and 156129 transitions. [2023-12-21 13:07:04,159 INFO L78 Accepts]: Start accepts. Automaton has 134189 states and 156129 transitions. Word has length 168 [2023-12-21 13:07:04,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:07:04,159 INFO L495 AbstractCegarLoop]: Abstraction has 134189 states and 156129 transitions. [2023-12-21 13:07:04,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:04,160 INFO L276 IsEmpty]: Start isEmpty. Operand 134189 states and 156129 transitions. [2023-12-21 13:07:04,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-21 13:07:04,322 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:07:04,322 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:07:04,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-21 13:07:04,322 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:07:04,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:07:04,323 INFO L85 PathProgramCache]: Analyzing trace with hash 326829294, now seen corresponding path program 1 times [2023-12-21 13:07:04,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:07:04,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293711865] [2023-12-21 13:07:04,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:07:04,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:07:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:07:05,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:07:05,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:07:05,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293711865] [2023-12-21 13:07:05,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293711865] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:07:05,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:07:05,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-21 13:07:05,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793481050] [2023-12-21 13:07:05,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:07:05,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-21 13:07:05,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:07:05,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-21 13:07:05,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2023-12-21 13:07:05,759 INFO L87 Difference]: Start difference. First operand 134189 states and 156129 transitions. Second operand has 21 states, 21 states have (on average 8.0) internal successors, (168), 20 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:13,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:07:13,431 INFO L93 Difference]: Finished difference Result 156945 states and 183461 transitions. [2023-12-21 13:07:13,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-12-21 13:07:13,431 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 8.0) internal successors, (168), 20 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2023-12-21 13:07:13,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:07:13,595 INFO L225 Difference]: With dead ends: 156945 [2023-12-21 13:07:13,595 INFO L226 Difference]: Without dead ends: 155123 [2023-12-21 13:07:13,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1196 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=1265, Invalid=3991, Unknown=0, NotChecked=0, Total=5256 [2023-12-21 13:07:13,616 INFO L413 NwaCegarLoop]: 1003 mSDtfsCounter, 5510 mSDsluCounter, 12284 mSDsCounter, 0 mSdLazyCounter, 4425 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5510 SdHoareTripleChecker+Valid, 13287 SdHoareTripleChecker+Invalid, 4537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 4425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-21 13:07:13,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5510 Valid, 13287 Invalid, 4537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 4425 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-21 13:07:13,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155123 states. [2023-12-21 13:07:15,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155123 to 136466. [2023-12-21 13:07:15,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136466 states, 136461 states have (on average 1.162779109049472) internal successors, (158674), 136465 states have internal predecessors, (158674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:15,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136466 states to 136466 states and 158674 transitions. [2023-12-21 13:07:15,678 INFO L78 Accepts]: Start accepts. Automaton has 136466 states and 158674 transitions. Word has length 168 [2023-12-21 13:07:15,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:07:15,679 INFO L495 AbstractCegarLoop]: Abstraction has 136466 states and 158674 transitions. [2023-12-21 13:07:15,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.0) internal successors, (168), 20 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:15,679 INFO L276 IsEmpty]: Start isEmpty. Operand 136466 states and 158674 transitions. [2023-12-21 13:07:15,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-21 13:07:15,835 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:07:15,836 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:07:15,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-21 13:07:15,836 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:07:15,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:07:15,836 INFO L85 PathProgramCache]: Analyzing trace with hash -2048019263, now seen corresponding path program 1 times [2023-12-21 13:07:15,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:07:15,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346809768] [2023-12-21 13:07:15,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:07:15,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:07:15,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:07:15,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:07:15,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:07:15,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346809768] [2023-12-21 13:07:15,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346809768] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:07:15,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:07:15,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:07:15,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375003967] [2023-12-21 13:07:15,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:07:15,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:07:15,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:07:15,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:07:15,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:07:15,892 INFO L87 Difference]: Start difference. First operand 136466 states and 158674 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:16,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:07:16,853 INFO L93 Difference]: Finished difference Result 180962 states and 211616 transitions. [2023-12-21 13:07:16,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:07:16,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 169 [2023-12-21 13:07:16,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:07:17,022 INFO L225 Difference]: With dead ends: 180962 [2023-12-21 13:07:17,022 INFO L226 Difference]: Without dead ends: 113230 [2023-12-21 13:07:17,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:07:17,075 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 418 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:07:17,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 618 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:07:17,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113230 states. [2023-12-21 13:07:18,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113230 to 111306. [2023-12-21 13:07:18,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111306 states, 111301 states have (on average 1.1571414452700335) internal successors, (128791), 111305 states have internal predecessors, (128791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:18,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111306 states to 111306 states and 128791 transitions. [2023-12-21 13:07:18,925 INFO L78 Accepts]: Start accepts. Automaton has 111306 states and 128791 transitions. Word has length 169 [2023-12-21 13:07:18,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:07:18,925 INFO L495 AbstractCegarLoop]: Abstraction has 111306 states and 128791 transitions. [2023-12-21 13:07:18,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:18,925 INFO L276 IsEmpty]: Start isEmpty. Operand 111306 states and 128791 transitions. [2023-12-21 13:07:19,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-21 13:07:19,041 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:07:19,041 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:07:19,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-21 13:07:19,041 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:07:19,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:07:19,042 INFO L85 PathProgramCache]: Analyzing trace with hash -555212355, now seen corresponding path program 1 times [2023-12-21 13:07:19,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:07:19,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969821065] [2023-12-21 13:07:19,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:07:19,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:07:19,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:07:19,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:07:19,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:07:19,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969821065] [2023-12-21 13:07:19,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969821065] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:07:19,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:07:19,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:07:19,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489652565] [2023-12-21 13:07:19,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:07:19,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:07:19,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:07:19,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:07:19,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:07:19,081 INFO L87 Difference]: Start difference. First operand 111306 states and 128791 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:19,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:07:19,443 INFO L93 Difference]: Finished difference Result 150055 states and 174143 transitions. [2023-12-21 13:07:19,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:07:19,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 169 [2023-12-21 13:07:19,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:07:19,546 INFO L225 Difference]: With dead ends: 150055 [2023-12-21 13:07:19,547 INFO L226 Difference]: Without dead ends: 96071 [2023-12-21 13:07:19,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:07:19,596 INFO L413 NwaCegarLoop]: 409 mSDtfsCounter, 387 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:07:19,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 467 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:07:19,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96071 states. [2023-12-21 13:07:20,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96071 to 95292. [2023-12-21 13:07:20,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95292 states, 95287 states have (on average 1.148824078835518) internal successors, (109468), 95291 states have internal predecessors, (109468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:21,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95292 states to 95292 states and 109468 transitions. [2023-12-21 13:07:21,189 INFO L78 Accepts]: Start accepts. Automaton has 95292 states and 109468 transitions. Word has length 169 [2023-12-21 13:07:21,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:07:21,189 INFO L495 AbstractCegarLoop]: Abstraction has 95292 states and 109468 transitions. [2023-12-21 13:07:21,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:21,190 INFO L276 IsEmpty]: Start isEmpty. Operand 95292 states and 109468 transitions. [2023-12-21 13:07:21,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-21 13:07:21,279 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:07:21,280 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:07:21,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-21 13:07:21,280 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:07:21,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:07:21,280 INFO L85 PathProgramCache]: Analyzing trace with hash -137568677, now seen corresponding path program 1 times [2023-12-21 13:07:21,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:07:21,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107487665] [2023-12-21 13:07:21,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:07:21,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:07:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:07:21,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:07:21,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:07:21,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107487665] [2023-12-21 13:07:21,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107487665] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:07:21,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:07:21,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:07:21,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864872224] [2023-12-21 13:07:21,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:07:21,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:07:21,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:07:21,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:07:21,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:07:21,327 INFO L87 Difference]: Start difference. First operand 95292 states and 109468 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:21,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:07:21,564 INFO L93 Difference]: Finished difference Result 109436 states and 125797 transitions. [2023-12-21 13:07:21,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:07:21,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 169 [2023-12-21 13:07:21,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:07:21,668 INFO L225 Difference]: With dead ends: 109436 [2023-12-21 13:07:21,668 INFO L226 Difference]: Without dead ends: 95133 [2023-12-21 13:07:21,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:07:21,704 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 280 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:07:21,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 1011 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:07:21,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95133 states. [2023-12-21 13:07:22,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95133 to 94966. [2023-12-21 13:07:22,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94966 states, 94961 states have (on average 1.1457335116521519) internal successors, (108800), 94965 states have internal predecessors, (108800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:23,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94966 states to 94966 states and 108800 transitions. [2023-12-21 13:07:23,099 INFO L78 Accepts]: Start accepts. Automaton has 94966 states and 108800 transitions. Word has length 169 [2023-12-21 13:07:23,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:07:23,100 INFO L495 AbstractCegarLoop]: Abstraction has 94966 states and 108800 transitions. [2023-12-21 13:07:23,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:23,100 INFO L276 IsEmpty]: Start isEmpty. Operand 94966 states and 108800 transitions. [2023-12-21 13:07:23,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-21 13:07:23,417 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:07:23,417 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:07:23,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-21 13:07:23,417 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:07:23,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:07:23,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1018105990, now seen corresponding path program 1 times [2023-12-21 13:07:23,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:07:23,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138468807] [2023-12-21 13:07:23,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:07:23,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:07:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:07:23,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:07:23,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:07:23,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138468807] [2023-12-21 13:07:23,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138468807] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:07:23,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:07:23,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:07:23,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810563411] [2023-12-21 13:07:23,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:07:23,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:07:23,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:07:23,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:07:23,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:07:23,455 INFO L87 Difference]: Start difference. First operand 94966 states and 108800 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:23,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:07:23,779 INFO L93 Difference]: Finished difference Result 130993 states and 151270 transitions. [2023-12-21 13:07:23,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:07:23,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 169 [2023-12-21 13:07:23,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:07:23,869 INFO L225 Difference]: With dead ends: 130993 [2023-12-21 13:07:23,869 INFO L226 Difference]: Without dead ends: 84245 [2023-12-21 13:07:23,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:07:23,912 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 385 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:07:23,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 536 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:07:23,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84245 states. [2023-12-21 13:07:25,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84245 to 83183. [2023-12-21 13:07:25,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83183 states, 83178 states have (on average 1.1403616340859362) internal successors, (94853), 83182 states have internal predecessors, (94853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:25,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83183 states to 83183 states and 94853 transitions. [2023-12-21 13:07:25,205 INFO L78 Accepts]: Start accepts. Automaton has 83183 states and 94853 transitions. Word has length 169 [2023-12-21 13:07:25,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:07:25,206 INFO L495 AbstractCegarLoop]: Abstraction has 83183 states and 94853 transitions. [2023-12-21 13:07:25,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:25,206 INFO L276 IsEmpty]: Start isEmpty. Operand 83183 states and 94853 transitions. [2023-12-21 13:07:25,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-21 13:07:25,289 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:07:25,289 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:07:25,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-21 13:07:25,289 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:07:25,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:07:25,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1122331827, now seen corresponding path program 1 times [2023-12-21 13:07:25,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:07:25,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865931939] [2023-12-21 13:07:25,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:07:25,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:07:25,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:07:25,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:07:25,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:07:25,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865931939] [2023-12-21 13:07:25,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865931939] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:07:25,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:07:25,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:07:25,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63745289] [2023-12-21 13:07:25,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:07:25,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:07:25,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:07:25,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:07:25,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:07:25,324 INFO L87 Difference]: Start difference. First operand 83183 states and 94853 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:25,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:07:25,889 INFO L93 Difference]: Finished difference Result 109571 states and 125921 transitions. [2023-12-21 13:07:25,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:07:25,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 169 [2023-12-21 13:07:25,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:07:25,967 INFO L225 Difference]: With dead ends: 109571 [2023-12-21 13:07:25,967 INFO L226 Difference]: Without dead ends: 62498 [2023-12-21 13:07:26,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:07:26,005 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 394 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:07:26,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 512 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:07:26,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62498 states. [2023-12-21 13:07:26,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62498 to 61522. [2023-12-21 13:07:26,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61522 states, 61517 states have (on average 1.1351496334346602) internal successors, (69831), 61521 states have internal predecessors, (69831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:26,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61522 states to 61522 states and 69831 transitions. [2023-12-21 13:07:26,906 INFO L78 Accepts]: Start accepts. Automaton has 61522 states and 69831 transitions. Word has length 169 [2023-12-21 13:07:26,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:07:26,907 INFO L495 AbstractCegarLoop]: Abstraction has 61522 states and 69831 transitions. [2023-12-21 13:07:26,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:26,907 INFO L276 IsEmpty]: Start isEmpty. Operand 61522 states and 69831 transitions. [2023-12-21 13:07:26,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-21 13:07:26,972 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:07:26,972 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:07:26,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-21 13:07:26,972 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:07:26,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:07:26,973 INFO L85 PathProgramCache]: Analyzing trace with hash -2070879393, now seen corresponding path program 1 times [2023-12-21 13:07:26,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:07:26,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244372816] [2023-12-21 13:07:26,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:07:26,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:07:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:07:27,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:07:27,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:07:27,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244372816] [2023-12-21 13:07:27,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244372816] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:07:27,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:07:27,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:07:27,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394908725] [2023-12-21 13:07:27,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:07:27,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:07:27,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:07:27,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:07:27,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:07:27,009 INFO L87 Difference]: Start difference. First operand 61522 states and 69831 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:27,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:07:27,411 INFO L93 Difference]: Finished difference Result 83519 states and 95625 transitions. [2023-12-21 13:07:27,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:07:27,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 169 [2023-12-21 13:07:27,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:07:27,457 INFO L225 Difference]: With dead ends: 83519 [2023-12-21 13:07:27,457 INFO L226 Difference]: Without dead ends: 47352 [2023-12-21 13:07:27,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:07:27,482 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 378 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:07:27,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 465 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:07:27,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47352 states. [2023-12-21 13:07:28,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47352 to 47080. [2023-12-21 13:07:28,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47080 states, 47075 states have (on average 1.1320870950610729) internal successors, (53293), 47079 states have internal predecessors, (53293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:28,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47080 states to 47080 states and 53293 transitions. [2023-12-21 13:07:28,110 INFO L78 Accepts]: Start accepts. Automaton has 47080 states and 53293 transitions. Word has length 169 [2023-12-21 13:07:28,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:07:28,110 INFO L495 AbstractCegarLoop]: Abstraction has 47080 states and 53293 transitions. [2023-12-21 13:07:28,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:28,110 INFO L276 IsEmpty]: Start isEmpty. Operand 47080 states and 53293 transitions. [2023-12-21 13:07:28,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-21 13:07:28,148 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:07:28,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:07:28,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-21 13:07:28,149 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:07:28,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:07:28,149 INFO L85 PathProgramCache]: Analyzing trace with hash 207737976, now seen corresponding path program 1 times [2023-12-21 13:07:28,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:07:28,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020198589] [2023-12-21 13:07:28,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:07:28,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:07:28,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:07:28,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:07:28,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:07:28,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020198589] [2023-12-21 13:07:28,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020198589] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:07:28,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:07:28,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:07:28,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712877293] [2023-12-21 13:07:28,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:07:28,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:07:28,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:07:28,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:07:28,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:07:28,199 INFO L87 Difference]: Start difference. First operand 47080 states and 53293 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:28,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:07:28,330 INFO L93 Difference]: Finished difference Result 52324 states and 59514 transitions. [2023-12-21 13:07:28,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:07:28,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 169 [2023-12-21 13:07:28,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:07:28,371 INFO L225 Difference]: With dead ends: 52324 [2023-12-21 13:07:28,372 INFO L226 Difference]: Without dead ends: 40192 [2023-12-21 13:07:28,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:07:28,391 INFO L413 NwaCegarLoop]: 728 mSDtfsCounter, 254 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:07:28,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 1182 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:07:28,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40192 states. [2023-12-21 13:07:28,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40192 to 39875. [2023-12-21 13:07:28,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39875 states, 39870 states have (on average 1.1321043391020817) internal successors, (45137), 39874 states have internal predecessors, (45137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:28,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39875 states to 39875 states and 45137 transitions. [2023-12-21 13:07:28,957 INFO L78 Accepts]: Start accepts. Automaton has 39875 states and 45137 transitions. Word has length 169 [2023-12-21 13:07:28,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:07:28,957 INFO L495 AbstractCegarLoop]: Abstraction has 39875 states and 45137 transitions. [2023-12-21 13:07:28,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:28,958 INFO L276 IsEmpty]: Start isEmpty. Operand 39875 states and 45137 transitions. [2023-12-21 13:07:28,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-21 13:07:28,993 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:07:28,993 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:07:28,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-12-21 13:07:28,994 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:07:28,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:07:28,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1107661777, now seen corresponding path program 1 times [2023-12-21 13:07:28,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:07:28,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572139807] [2023-12-21 13:07:28,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:07:28,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:07:29,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:07:29,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:07:29,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:07:29,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572139807] [2023-12-21 13:07:29,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572139807] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:07:29,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:07:29,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:07:29,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923431542] [2023-12-21 13:07:29,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:07:29,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:07:29,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:07:29,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:07:29,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:07:29,041 INFO L87 Difference]: Start difference. First operand 39875 states and 45137 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:29,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:07:29,129 INFO L93 Difference]: Finished difference Result 46413 states and 52734 transitions. [2023-12-21 13:07:29,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:07:29,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 169 [2023-12-21 13:07:29,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:07:29,165 INFO L225 Difference]: With dead ends: 46413 [2023-12-21 13:07:29,165 INFO L226 Difference]: Without dead ends: 36483 [2023-12-21 13:07:29,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:07:29,179 INFO L413 NwaCegarLoop]: 719 mSDtfsCounter, 269 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:07:29,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 1179 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:07:29,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36483 states. [2023-12-21 13:07:29,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36483 to 36221. [2023-12-21 13:07:29,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36221 states, 36216 states have (on average 1.1319858626021648) internal successors, (40996), 36220 states have internal predecessors, (40996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:29,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36221 states to 36221 states and 40996 transitions. [2023-12-21 13:07:29,688 INFO L78 Accepts]: Start accepts. Automaton has 36221 states and 40996 transitions. Word has length 169 [2023-12-21 13:07:29,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:07:29,688 INFO L495 AbstractCegarLoop]: Abstraction has 36221 states and 40996 transitions. [2023-12-21 13:07:29,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:29,689 INFO L276 IsEmpty]: Start isEmpty. Operand 36221 states and 40996 transitions. [2023-12-21 13:07:29,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-21 13:07:29,720 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:07:29,720 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:07:29,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-12-21 13:07:29,721 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:07:29,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:07:29,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1167659175, now seen corresponding path program 1 times [2023-12-21 13:07:29,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:07:29,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749448060] [2023-12-21 13:07:29,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:07:29,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:07:29,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:07:29,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:07:29,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:07:29,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749448060] [2023-12-21 13:07:29,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749448060] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:07:29,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:07:29,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:07:29,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062914332] [2023-12-21 13:07:29,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:07:29,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:07:29,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:07:29,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:07:29,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:07:29,758 INFO L87 Difference]: Start difference. First operand 36221 states and 40996 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:30,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:07:30,074 INFO L93 Difference]: Finished difference Result 50614 states and 58438 transitions. [2023-12-21 13:07:30,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:07:30,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 169 [2023-12-21 13:07:30,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:07:30,109 INFO L225 Difference]: With dead ends: 50614 [2023-12-21 13:07:30,110 INFO L226 Difference]: Without dead ends: 28311 [2023-12-21 13:07:30,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:07:30,125 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 372 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:07:30,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 543 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:07:30,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28311 states. [2023-12-21 13:07:30,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28311 to 26495. [2023-12-21 13:07:30,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26495 states, 26490 states have (on average 1.141147602869007) internal successors, (30229), 26494 states have internal predecessors, (30229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:30,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26495 states to 26495 states and 30229 transitions. [2023-12-21 13:07:30,408 INFO L78 Accepts]: Start accepts. Automaton has 26495 states and 30229 transitions. Word has length 169 [2023-12-21 13:07:30,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:07:30,409 INFO L495 AbstractCegarLoop]: Abstraction has 26495 states and 30229 transitions. [2023-12-21 13:07:30,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:30,410 INFO L276 IsEmpty]: Start isEmpty. Operand 26495 states and 30229 transitions. [2023-12-21 13:07:30,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-12-21 13:07:30,428 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:07:30,428 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:07:30,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-12-21 13:07:30,429 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:07:30,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:07:30,429 INFO L85 PathProgramCache]: Analyzing trace with hash 736200159, now seen corresponding path program 1 times [2023-12-21 13:07:30,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:07:30,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621118283] [2023-12-21 13:07:30,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:07:30,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:07:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:07:30,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:07:30,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:07:30,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621118283] [2023-12-21 13:07:30,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621118283] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:07:30,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:07:30,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:07:30,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429128199] [2023-12-21 13:07:30,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:07:30,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:07:30,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:07:30,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:07:30,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:07:30,474 INFO L87 Difference]: Start difference. First operand 26495 states and 30229 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:30,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:07:30,557 INFO L93 Difference]: Finished difference Result 30655 states and 35172 transitions. [2023-12-21 13:07:30,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:07:30,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2023-12-21 13:07:30,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:07:30,580 INFO L225 Difference]: With dead ends: 30655 [2023-12-21 13:07:30,580 INFO L226 Difference]: Without dead ends: 23869 [2023-12-21 13:07:30,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:07:30,592 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 309 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:07:30,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 960 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:07:30,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23869 states. [2023-12-21 13:07:30,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23869 to 23783. [2023-12-21 13:07:30,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23783 states, 23778 states have (on average 1.1431575405837329) internal successors, (27182), 23782 states have internal predecessors, (27182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:30,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23783 states to 23783 states and 27182 transitions. [2023-12-21 13:07:30,919 INFO L78 Accepts]: Start accepts. Automaton has 23783 states and 27182 transitions. Word has length 173 [2023-12-21 13:07:30,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:07:30,919 INFO L495 AbstractCegarLoop]: Abstraction has 23783 states and 27182 transitions. [2023-12-21 13:07:30,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:30,919 INFO L276 IsEmpty]: Start isEmpty. Operand 23783 states and 27182 transitions. [2023-12-21 13:07:30,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-12-21 13:07:30,937 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:07:30,937 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:07:30,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-12-21 13:07:30,938 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:07:30,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:07:30,938 INFO L85 PathProgramCache]: Analyzing trace with hash -376670231, now seen corresponding path program 1 times [2023-12-21 13:07:30,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:07:30,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034175125] [2023-12-21 13:07:30,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:07:30,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:07:30,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:07:30,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:07:30,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:07:30,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034175125] [2023-12-21 13:07:30,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034175125] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:07:30,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:07:30,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:07:30,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445293855] [2023-12-21 13:07:30,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:07:30,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:07:30,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:07:30,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:07:30,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:07:30,977 INFO L87 Difference]: Start difference. First operand 23783 states and 27182 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:31,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:07:31,043 INFO L93 Difference]: Finished difference Result 28094 states and 32228 transitions. [2023-12-21 13:07:31,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:07:31,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2023-12-21 13:07:31,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:07:31,064 INFO L225 Difference]: With dead ends: 28094 [2023-12-21 13:07:31,064 INFO L226 Difference]: Without dead ends: 22024 [2023-12-21 13:07:31,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:07:31,073 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 322 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:07:31,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 980 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:07:31,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22024 states. [2023-12-21 13:07:31,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22024 to 21846. [2023-12-21 13:07:31,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21846 states, 21841 states have (on average 1.1435373838194223) internal successors, (24976), 21845 states have internal predecessors, (24976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:31,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21846 states to 21846 states and 24976 transitions. [2023-12-21 13:07:31,386 INFO L78 Accepts]: Start accepts. Automaton has 21846 states and 24976 transitions. Word has length 173 [2023-12-21 13:07:31,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:07:31,386 INFO L495 AbstractCegarLoop]: Abstraction has 21846 states and 24976 transitions. [2023-12-21 13:07:31,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:31,386 INFO L276 IsEmpty]: Start isEmpty. Operand 21846 states and 24976 transitions. [2023-12-21 13:07:31,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-12-21 13:07:31,402 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:07:31,402 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:07:31,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-12-21 13:07:31,402 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:07:31,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:07:31,403 INFO L85 PathProgramCache]: Analyzing trace with hash 977477953, now seen corresponding path program 1 times [2023-12-21 13:07:31,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:07:31,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527241374] [2023-12-21 13:07:31,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:07:31,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:07:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:07:31,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:07:31,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:07:31,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527241374] [2023-12-21 13:07:31,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527241374] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:07:31,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:07:31,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:07:31,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145952344] [2023-12-21 13:07:31,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:07:31,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:07:31,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:07:31,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:07:31,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:07:31,443 INFO L87 Difference]: Start difference. First operand 21846 states and 24976 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:31,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:07:31,509 INFO L93 Difference]: Finished difference Result 25827 states and 29670 transitions. [2023-12-21 13:07:31,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:07:31,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2023-12-21 13:07:31,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:07:31,529 INFO L225 Difference]: With dead ends: 25827 [2023-12-21 13:07:31,529 INFO L226 Difference]: Without dead ends: 20028 [2023-12-21 13:07:31,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:07:31,538 INFO L413 NwaCegarLoop]: 716 mSDtfsCounter, 314 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:07:31,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 1164 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:07:31,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20028 states. [2023-12-21 13:07:31,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20028 to 19787. [2023-12-21 13:07:31,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19787 states, 19782 states have (on average 1.143362652916793) internal successors, (22618), 19786 states have internal predecessors, (22618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:31,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19787 states to 19787 states and 22618 transitions. [2023-12-21 13:07:31,717 INFO L78 Accepts]: Start accepts. Automaton has 19787 states and 22618 transitions. Word has length 173 [2023-12-21 13:07:31,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:07:31,717 INFO L495 AbstractCegarLoop]: Abstraction has 19787 states and 22618 transitions. [2023-12-21 13:07:31,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:31,717 INFO L276 IsEmpty]: Start isEmpty. Operand 19787 states and 22618 transitions. [2023-12-21 13:07:31,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-21 13:07:31,732 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:07:31,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:07:31,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-12-21 13:07:31,733 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:07:31,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:07:31,733 INFO L85 PathProgramCache]: Analyzing trace with hash -504161139, now seen corresponding path program 1 times [2023-12-21 13:07:31,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:07:31,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258710526] [2023-12-21 13:07:31,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:07:31,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:07:31,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:07:33,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:07:33,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:07:33,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258710526] [2023-12-21 13:07:33,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258710526] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:07:33,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:07:33,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2023-12-21 13:07:33,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835012978] [2023-12-21 13:07:33,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:07:33,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-21 13:07:33,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:07:33,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-21 13:07:33,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2023-12-21 13:07:33,071 INFO L87 Difference]: Start difference. First operand 19787 states and 22618 transitions. Second operand has 22 states, 22 states have (on average 7.909090909090909) internal successors, (174), 21 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:38,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:07:38,544 INFO L93 Difference]: Finished difference Result 25396 states and 29957 transitions. [2023-12-21 13:07:38,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-12-21 13:07:38,545 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 7.909090909090909) internal successors, (174), 21 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2023-12-21 13:07:38,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:07:38,570 INFO L225 Difference]: With dead ends: 25396 [2023-12-21 13:07:38,570 INFO L226 Difference]: Without dead ends: 24079 [2023-12-21 13:07:38,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=558, Invalid=2304, Unknown=0, NotChecked=0, Total=2862 [2023-12-21 13:07:38,577 INFO L413 NwaCegarLoop]: 998 mSDtfsCounter, 4225 mSDsluCounter, 12434 mSDsCounter, 0 mSdLazyCounter, 3854 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4225 SdHoareTripleChecker+Valid, 13432 SdHoareTripleChecker+Invalid, 3899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 3854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:07:38,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4225 Valid, 13432 Invalid, 3899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 3854 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-21 13:07:38,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24079 states. [2023-12-21 13:07:38,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24079 to 20055. [2023-12-21 13:07:38,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20055 states, 20050 states have (on average 1.141147132169576) internal successors, (22880), 20054 states have internal predecessors, (22880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:38,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20055 states to 20055 states and 22880 transitions. [2023-12-21 13:07:38,764 INFO L78 Accepts]: Start accepts. Automaton has 20055 states and 22880 transitions. Word has length 174 [2023-12-21 13:07:38,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:07:38,764 INFO L495 AbstractCegarLoop]: Abstraction has 20055 states and 22880 transitions. [2023-12-21 13:07:38,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.909090909090909) internal successors, (174), 21 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:38,764 INFO L276 IsEmpty]: Start isEmpty. Operand 20055 states and 22880 transitions. [2023-12-21 13:07:38,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-21 13:07:38,821 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:07:38,821 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:07:38,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-12-21 13:07:38,821 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:07:38,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:07:38,822 INFO L85 PathProgramCache]: Analyzing trace with hash 52172476, now seen corresponding path program 1 times [2023-12-21 13:07:38,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:07:38,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329281928] [2023-12-21 13:07:38,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:07:38,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:07:38,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:07:39,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:07:39,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:07:39,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329281928] [2023-12-21 13:07:39,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329281928] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:07:39,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:07:39,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-21 13:07:39,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194279183] [2023-12-21 13:07:39,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:07:39,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-21 13:07:39,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:07:39,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-21 13:07:39,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2023-12-21 13:07:39,485 INFO L87 Difference]: Start difference. First operand 20055 states and 22880 transitions. Second operand has 17 states, 17 states have (on average 10.235294117647058) internal successors, (174), 16 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:40,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:07:40,583 INFO L93 Difference]: Finished difference Result 24548 states and 28916 transitions. [2023-12-21 13:07:40,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-21 13:07:40,583 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 10.235294117647058) internal successors, (174), 16 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2023-12-21 13:07:40,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:07:40,602 INFO L225 Difference]: With dead ends: 24548 [2023-12-21 13:07:40,602 INFO L226 Difference]: Without dead ends: 21699 [2023-12-21 13:07:40,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=218, Invalid=652, Unknown=0, NotChecked=0, Total=870 [2023-12-21 13:07:40,607 INFO L413 NwaCegarLoop]: 771 mSDtfsCounter, 2689 mSDsluCounter, 6715 mSDsCounter, 0 mSdLazyCounter, 1597 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2689 SdHoareTripleChecker+Valid, 7486 SdHoareTripleChecker+Invalid, 1605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 13:07:40,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2689 Valid, 7486 Invalid, 1605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1597 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 13:07:40,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21699 states. [2023-12-21 13:07:40,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21699 to 18950. [2023-12-21 13:07:40,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18950 states, 18945 states have (on average 1.1477434679334917) internal successors, (21744), 18949 states have internal predecessors, (21744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:40,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18950 states to 18950 states and 21744 transitions. [2023-12-21 13:07:40,797 INFO L78 Accepts]: Start accepts. Automaton has 18950 states and 21744 transitions. Word has length 174 [2023-12-21 13:07:40,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:07:40,797 INFO L495 AbstractCegarLoop]: Abstraction has 18950 states and 21744 transitions. [2023-12-21 13:07:40,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 10.235294117647058) internal successors, (174), 16 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:40,797 INFO L276 IsEmpty]: Start isEmpty. Operand 18950 states and 21744 transitions. [2023-12-21 13:07:40,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-21 13:07:40,812 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:07:40,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:07:40,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-12-21 13:07:40,813 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:07:40,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:07:40,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1723882690, now seen corresponding path program 1 times [2023-12-21 13:07:40,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:07:40,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255051162] [2023-12-21 13:07:40,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:07:40,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:07:40,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:07:41,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:07:41,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:07:41,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255051162] [2023-12-21 13:07:41,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255051162] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:07:41,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:07:41,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-21 13:07:41,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115189620] [2023-12-21 13:07:41,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:07:41,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-21 13:07:41,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:07:41,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-21 13:07:41,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2023-12-21 13:07:41,961 INFO L87 Difference]: Start difference. First operand 18950 states and 21744 transitions. Second operand has 23 states, 23 states have (on average 7.565217391304348) internal successors, (174), 22 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:46,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:07:46,845 INFO L93 Difference]: Finished difference Result 23234 states and 27361 transitions. [2023-12-21 13:07:46,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-12-21 13:07:46,845 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.565217391304348) internal successors, (174), 22 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2023-12-21 13:07:46,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:07:46,864 INFO L225 Difference]: With dead ends: 23234 [2023-12-21 13:07:46,864 INFO L226 Difference]: Without dead ends: 22287 [2023-12-21 13:07:46,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=743, Invalid=2679, Unknown=0, NotChecked=0, Total=3422 [2023-12-21 13:07:46,871 INFO L413 NwaCegarLoop]: 1075 mSDtfsCounter, 5241 mSDsluCounter, 15402 mSDsCounter, 0 mSdLazyCounter, 5415 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5241 SdHoareTripleChecker+Valid, 16477 SdHoareTripleChecker+Invalid, 5539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 5415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-21 13:07:46,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5241 Valid, 16477 Invalid, 5539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 5415 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-21 13:07:46,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22287 states. [2023-12-21 13:07:47,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22287 to 19205. [2023-12-21 13:07:47,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19205 states, 19200 states have (on average 1.145625) internal successors, (21996), 19204 states have internal predecessors, (21996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:47,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19205 states to 19205 states and 21996 transitions. [2023-12-21 13:07:47,053 INFO L78 Accepts]: Start accepts. Automaton has 19205 states and 21996 transitions. Word has length 174 [2023-12-21 13:07:47,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:07:47,053 INFO L495 AbstractCegarLoop]: Abstraction has 19205 states and 21996 transitions. [2023-12-21 13:07:47,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.565217391304348) internal successors, (174), 22 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:47,053 INFO L276 IsEmpty]: Start isEmpty. Operand 19205 states and 21996 transitions. [2023-12-21 13:07:47,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-21 13:07:47,067 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:07:47,067 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:07:47,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-12-21 13:07:47,068 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:07:47,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:07:47,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1167225334, now seen corresponding path program 1 times [2023-12-21 13:07:47,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:07:47,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662002263] [2023-12-21 13:07:47,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:07:47,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:07:47,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:07:47,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:07:47,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:07:47,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662002263] [2023-12-21 13:07:47,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662002263] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:07:47,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:07:47,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-21 13:07:47,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045207680] [2023-12-21 13:07:47,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:07:47,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 13:07:47,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:07:47,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 13:07:47,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2023-12-21 13:07:47,776 INFO L87 Difference]: Start difference. First operand 19205 states and 21996 transitions. Second operand has 16 states, 16 states have (on average 10.875) internal successors, (174), 15 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:49,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:07:49,017 INFO L93 Difference]: Finished difference Result 20744 states and 24110 transitions. [2023-12-21 13:07:49,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 13:07:49,017 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.875) internal successors, (174), 15 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2023-12-21 13:07:49,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:07:49,034 INFO L225 Difference]: With dead ends: 20744 [2023-12-21 13:07:49,034 INFO L226 Difference]: Without dead ends: 18276 [2023-12-21 13:07:49,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=167, Invalid=483, Unknown=0, NotChecked=0, Total=650 [2023-12-21 13:07:49,041 INFO L413 NwaCegarLoop]: 732 mSDtfsCounter, 1783 mSDsluCounter, 5201 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1783 SdHoareTripleChecker+Valid, 5933 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 13:07:49,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1783 Valid, 5933 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 13:07:49,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18276 states. [2023-12-21 13:07:49,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18276 to 18223. [2023-12-21 13:07:49,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18223 states, 18219 states have (on average 1.1517097535539822) internal successors, (20983), 18222 states have internal predecessors, (20983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:49,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18223 states to 18223 states and 20983 transitions. [2023-12-21 13:07:49,206 INFO L78 Accepts]: Start accepts. Automaton has 18223 states and 20983 transitions. Word has length 174 [2023-12-21 13:07:49,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:07:49,206 INFO L495 AbstractCegarLoop]: Abstraction has 18223 states and 20983 transitions. [2023-12-21 13:07:49,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.875) internal successors, (174), 15 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:49,206 INFO L276 IsEmpty]: Start isEmpty. Operand 18223 states and 20983 transitions. [2023-12-21 13:07:49,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-21 13:07:49,220 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:07:49,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:07:49,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-12-21 13:07:49,221 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:07:49,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:07:49,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1137714931, now seen corresponding path program 1 times [2023-12-21 13:07:49,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:07:49,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619884280] [2023-12-21 13:07:49,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:07:49,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:07:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:07:50,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:07:50,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:07:50,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619884280] [2023-12-21 13:07:50,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619884280] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:07:50,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:07:50,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-21 13:07:50,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341817025] [2023-12-21 13:07:50,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:07:50,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-21 13:07:50,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:07:50,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-21 13:07:50,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2023-12-21 13:07:50,082 INFO L87 Difference]: Start difference. First operand 18223 states and 20983 transitions. Second operand has 21 states, 21 states have (on average 8.285714285714286) internal successors, (174), 20 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:51,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:07:51,854 INFO L93 Difference]: Finished difference Result 20373 states and 23671 transitions. [2023-12-21 13:07:51,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-21 13:07:51,854 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 8.285714285714286) internal successors, (174), 20 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2023-12-21 13:07:51,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:07:51,873 INFO L225 Difference]: With dead ends: 20373 [2023-12-21 13:07:51,874 INFO L226 Difference]: Without dead ends: 17891 [2023-12-21 13:07:51,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=406, Invalid=1574, Unknown=0, NotChecked=0, Total=1980 [2023-12-21 13:07:51,881 INFO L413 NwaCegarLoop]: 670 mSDtfsCounter, 3083 mSDsluCounter, 6871 mSDsCounter, 0 mSdLazyCounter, 2442 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3083 SdHoareTripleChecker+Valid, 7541 SdHoareTripleChecker+Invalid, 2478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:07:51,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3083 Valid, 7541 Invalid, 2478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2442 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 13:07:51,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17891 states. [2023-12-21 13:07:52,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17891 to 17496. [2023-12-21 13:07:52,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17496 states, 17492 states have (on average 1.1566430368168306) internal successors, (20232), 17495 states have internal predecessors, (20232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:52,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17496 states to 17496 states and 20232 transitions. [2023-12-21 13:07:52,052 INFO L78 Accepts]: Start accepts. Automaton has 17496 states and 20232 transitions. Word has length 174 [2023-12-21 13:07:52,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:07:52,053 INFO L495 AbstractCegarLoop]: Abstraction has 17496 states and 20232 transitions. [2023-12-21 13:07:52,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.285714285714286) internal successors, (174), 20 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:52,053 INFO L276 IsEmpty]: Start isEmpty. Operand 17496 states and 20232 transitions. [2023-12-21 13:07:52,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-21 13:07:52,064 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:07:52,064 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:07:52,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-12-21 13:07:52,065 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:07:52,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:07:52,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1226683645, now seen corresponding path program 1 times [2023-12-21 13:07:52,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:07:52,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084432580] [2023-12-21 13:07:52,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:07:52,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:07:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:07:53,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:07:53,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:07:53,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084432580] [2023-12-21 13:07:53,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084432580] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:07:53,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:07:53,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-21 13:07:53,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245031896] [2023-12-21 13:07:53,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:07:53,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-21 13:07:53,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:07:53,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-21 13:07:53,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2023-12-21 13:07:53,371 INFO L87 Difference]: Start difference. First operand 17496 states and 20232 transitions. Second operand has 23 states, 23 states have (on average 7.565217391304348) internal successors, (174), 22 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:57,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:07:57,028 INFO L93 Difference]: Finished difference Result 18296 states and 21217 transitions. [2023-12-21 13:07:57,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-21 13:07:57,029 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.565217391304348) internal successors, (174), 22 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2023-12-21 13:07:57,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:07:57,044 INFO L225 Difference]: With dead ends: 18296 [2023-12-21 13:07:57,045 INFO L226 Difference]: Without dead ends: 17921 [2023-12-21 13:07:57,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=388, Invalid=1252, Unknown=0, NotChecked=0, Total=1640 [2023-12-21 13:07:57,049 INFO L413 NwaCegarLoop]: 831 mSDtfsCounter, 1929 mSDsluCounter, 10189 mSDsCounter, 0 mSdLazyCounter, 3452 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1929 SdHoareTripleChecker+Valid, 11020 SdHoareTripleChecker+Invalid, 3478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 3452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:07:57,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1929 Valid, 11020 Invalid, 3478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 3452 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-21 13:07:57,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17921 states. [2023-12-21 13:07:57,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17921 to 17354. [2023-12-21 13:07:57,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17354 states, 17350 states have (on average 1.1576945244956773) internal successors, (20086), 17353 states have internal predecessors, (20086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:57,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17354 states to 17354 states and 20086 transitions. [2023-12-21 13:07:57,200 INFO L78 Accepts]: Start accepts. Automaton has 17354 states and 20086 transitions. Word has length 174 [2023-12-21 13:07:57,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:07:57,201 INFO L495 AbstractCegarLoop]: Abstraction has 17354 states and 20086 transitions. [2023-12-21 13:07:57,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.565217391304348) internal successors, (174), 22 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:07:57,201 INFO L276 IsEmpty]: Start isEmpty. Operand 17354 states and 20086 transitions. [2023-12-21 13:07:57,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-21 13:07:57,211 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:07:57,211 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:07:57,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2023-12-21 13:07:57,211 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:07:57,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:07:57,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1543596206, now seen corresponding path program 1 times [2023-12-21 13:07:57,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:07:57,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677482153] [2023-12-21 13:07:57,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:07:57,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:07:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:07:58,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:07:58,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:07:58,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677482153] [2023-12-21 13:07:58,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677482153] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:07:58,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:07:58,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2023-12-21 13:07:58,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129960185] [2023-12-21 13:07:58,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:07:58,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-21 13:07:58,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:07:58,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-21 13:07:58,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2023-12-21 13:07:58,395 INFO L87 Difference]: Start difference. First operand 17354 states and 20086 transitions. Second operand has 26 states, 26 states have (on average 6.6923076923076925) internal successors, (174), 25 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:03,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:08:03,213 INFO L93 Difference]: Finished difference Result 25426 states and 30999 transitions. [2023-12-21 13:08:03,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-21 13:08:03,213 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.6923076923076925) internal successors, (174), 25 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2023-12-21 13:08:03,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:08:03,244 INFO L225 Difference]: With dead ends: 25426 [2023-12-21 13:08:03,244 INFO L226 Difference]: Without dead ends: 25130 [2023-12-21 13:08:03,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 953 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=860, Invalid=3970, Unknown=0, NotChecked=0, Total=4830 [2023-12-21 13:08:03,254 INFO L413 NwaCegarLoop]: 749 mSDtfsCounter, 2998 mSDsluCounter, 13364 mSDsCounter, 0 mSdLazyCounter, 5052 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2998 SdHoareTripleChecker+Valid, 14113 SdHoareTripleChecker+Invalid, 5103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 5052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:08:03,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2998 Valid, 14113 Invalid, 5103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 5052 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-21 13:08:03,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25130 states. [2023-12-21 13:08:03,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25130 to 17411. [2023-12-21 13:08:03,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17411 states, 17407 states have (on average 1.1571781467225828) internal successors, (20143), 17410 states have internal predecessors, (20143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:03,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17411 states to 17411 states and 20143 transitions. [2023-12-21 13:08:03,465 INFO L78 Accepts]: Start accepts. Automaton has 17411 states and 20143 transitions. Word has length 174 [2023-12-21 13:08:03,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:08:03,465 INFO L495 AbstractCegarLoop]: Abstraction has 17411 states and 20143 transitions. [2023-12-21 13:08:03,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.6923076923076925) internal successors, (174), 25 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:03,465 INFO L276 IsEmpty]: Start isEmpty. Operand 17411 states and 20143 transitions. [2023-12-21 13:08:03,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-21 13:08:03,475 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:08:03,475 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:08:03,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-12-21 13:08:03,475 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:08:03,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:08:03,476 INFO L85 PathProgramCache]: Analyzing trace with hash 946060116, now seen corresponding path program 1 times [2023-12-21 13:08:03,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:08:03,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666271990] [2023-12-21 13:08:03,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:08:03,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:08:03,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:08:04,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:08:04,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:08:04,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666271990] [2023-12-21 13:08:04,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666271990] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:08:04,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:08:04,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-21 13:08:04,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985602804] [2023-12-21 13:08:04,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:08:04,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-21 13:08:04,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:08:04,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-21 13:08:04,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2023-12-21 13:08:04,044 INFO L87 Difference]: Start difference. First operand 17411 states and 20143 transitions. Second operand has 17 states, 17 states have (on average 10.235294117647058) internal successors, (174), 16 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:05,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:08:05,272 INFO L93 Difference]: Finished difference Result 21218 states and 25058 transitions. [2023-12-21 13:08:05,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-21 13:08:05,273 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 10.235294117647058) internal successors, (174), 16 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2023-12-21 13:08:05,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:08:05,292 INFO L225 Difference]: With dead ends: 21218 [2023-12-21 13:08:05,292 INFO L226 Difference]: Without dead ends: 19279 [2023-12-21 13:08:05,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=242, Invalid=948, Unknown=0, NotChecked=0, Total=1190 [2023-12-21 13:08:05,300 INFO L413 NwaCegarLoop]: 667 mSDtfsCounter, 2322 mSDsluCounter, 6858 mSDsCounter, 0 mSdLazyCounter, 1788 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2322 SdHoareTripleChecker+Valid, 7525 SdHoareTripleChecker+Invalid, 1829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 13:08:05,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2322 Valid, 7525 Invalid, 1829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1788 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 13:08:05,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19279 states. [2023-12-21 13:08:05,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19279 to 17073. [2023-12-21 13:08:05,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17073 states, 17069 states have (on average 1.1591188704669284) internal successors, (19785), 17072 states have internal predecessors, (19785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:05,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17073 states to 17073 states and 19785 transitions. [2023-12-21 13:08:05,473 INFO L78 Accepts]: Start accepts. Automaton has 17073 states and 19785 transitions. Word has length 174 [2023-12-21 13:08:05,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:08:05,473 INFO L495 AbstractCegarLoop]: Abstraction has 17073 states and 19785 transitions. [2023-12-21 13:08:05,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 10.235294117647058) internal successors, (174), 16 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:05,473 INFO L276 IsEmpty]: Start isEmpty. Operand 17073 states and 19785 transitions. [2023-12-21 13:08:05,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-21 13:08:05,482 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:08:05,482 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:08:05,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-12-21 13:08:05,483 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:08:05,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:08:05,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1589518964, now seen corresponding path program 1 times [2023-12-21 13:08:05,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:08:05,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748005088] [2023-12-21 13:08:05,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:08:05,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:08:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:08:07,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:08:07,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:08:07,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748005088] [2023-12-21 13:08:07,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748005088] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:08:07,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:08:07,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-21 13:08:07,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943787518] [2023-12-21 13:08:07,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:08:07,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-21 13:08:07,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:08:07,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-21 13:08:07,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2023-12-21 13:08:07,318 INFO L87 Difference]: Start difference. First operand 17073 states and 19785 transitions. Second operand has 27 states, 27 states have (on average 6.444444444444445) internal successors, (174), 26 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:12,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:08:12,255 INFO L93 Difference]: Finished difference Result 17200 states and 19920 transitions. [2023-12-21 13:08:12,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-21 13:08:12,257 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.444444444444445) internal successors, (174), 26 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2023-12-21 13:08:12,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:08:12,273 INFO L225 Difference]: With dead ends: 17200 [2023-12-21 13:08:12,273 INFO L226 Difference]: Without dead ends: 17187 [2023-12-21 13:08:12,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=479, Invalid=1971, Unknown=0, NotChecked=0, Total=2450 [2023-12-21 13:08:12,280 INFO L413 NwaCegarLoop]: 740 mSDtfsCounter, 2597 mSDsluCounter, 11635 mSDsCounter, 0 mSdLazyCounter, 4618 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2597 SdHoareTripleChecker+Valid, 12375 SdHoareTripleChecker+Invalid, 4635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 4618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:08:12,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2597 Valid, 12375 Invalid, 4635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 4618 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-21 13:08:12,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17187 states. [2023-12-21 13:08:12,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17187 to 16994. [2023-12-21 13:08:12,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16994 states, 16990 states have (on average 1.1596233078281342) internal successors, (19702), 16993 states have internal predecessors, (19702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:12,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16994 states to 16994 states and 19702 transitions. [2023-12-21 13:08:12,438 INFO L78 Accepts]: Start accepts. Automaton has 16994 states and 19702 transitions. Word has length 174 [2023-12-21 13:08:12,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:08:12,438 INFO L495 AbstractCegarLoop]: Abstraction has 16994 states and 19702 transitions. [2023-12-21 13:08:12,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.444444444444445) internal successors, (174), 26 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:12,438 INFO L276 IsEmpty]: Start isEmpty. Operand 16994 states and 19702 transitions. [2023-12-21 13:08:12,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-21 13:08:12,448 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:08:12,448 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:08:12,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2023-12-21 13:08:12,448 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:08:12,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:08:12,448 INFO L85 PathProgramCache]: Analyzing trace with hash -20215617, now seen corresponding path program 1 times [2023-12-21 13:08:12,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:08:12,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653126618] [2023-12-21 13:08:12,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:08:12,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:08:12,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:08:13,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:08:13,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:08:13,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653126618] [2023-12-21 13:08:13,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653126618] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:08:13,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:08:13,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-21 13:08:13,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984878572] [2023-12-21 13:08:13,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:08:13,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-21 13:08:13,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:08:13,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-21 13:08:13,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2023-12-21 13:08:13,574 INFO L87 Difference]: Start difference. First operand 16994 states and 19702 transitions. Second operand has 23 states, 23 states have (on average 7.565217391304348) internal successors, (174), 22 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:19,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:08:19,547 INFO L93 Difference]: Finished difference Result 21597 states and 25667 transitions. [2023-12-21 13:08:19,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-21 13:08:19,548 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.565217391304348) internal successors, (174), 22 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2023-12-21 13:08:19,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:08:19,570 INFO L225 Difference]: With dead ends: 21597 [2023-12-21 13:08:19,571 INFO L226 Difference]: Without dead ends: 20709 [2023-12-21 13:08:19,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 822 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=798, Invalid=3108, Unknown=0, NotChecked=0, Total=3906 [2023-12-21 13:08:19,579 INFO L413 NwaCegarLoop]: 1306 mSDtfsCounter, 4404 mSDsluCounter, 15767 mSDsCounter, 0 mSdLazyCounter, 5568 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4404 SdHoareTripleChecker+Valid, 17073 SdHoareTripleChecker+Invalid, 5667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 5568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:08:19,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4404 Valid, 17073 Invalid, 5667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 5568 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-21 13:08:19,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20709 states. [2023-12-21 13:08:19,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20709 to 17541. [2023-12-21 13:08:19,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17541 states, 17537 states have (on average 1.1560700233791412) internal successors, (20274), 17540 states have internal predecessors, (20274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:19,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17541 states to 17541 states and 20274 transitions. [2023-12-21 13:08:19,773 INFO L78 Accepts]: Start accepts. Automaton has 17541 states and 20274 transitions. Word has length 174 [2023-12-21 13:08:19,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:08:19,773 INFO L495 AbstractCegarLoop]: Abstraction has 17541 states and 20274 transitions. [2023-12-21 13:08:19,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.565217391304348) internal successors, (174), 22 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:19,773 INFO L276 IsEmpty]: Start isEmpty. Operand 17541 states and 20274 transitions. [2023-12-21 13:08:19,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-21 13:08:19,786 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:08:19,787 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:08:19,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2023-12-21 13:08:19,788 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:08:19,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:08:19,788 INFO L85 PathProgramCache]: Analyzing trace with hash 910042414, now seen corresponding path program 1 times [2023-12-21 13:08:19,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:08:19,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335629597] [2023-12-21 13:08:19,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:08:19,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:08:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:08:20,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:08:20,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:08:20,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335629597] [2023-12-21 13:08:20,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335629597] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:08:20,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:08:20,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2023-12-21 13:08:20,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058262215] [2023-12-21 13:08:20,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:08:20,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-21 13:08:20,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:08:20,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-21 13:08:20,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2023-12-21 13:08:20,947 INFO L87 Difference]: Start difference. First operand 17541 states and 20274 transitions. Second operand has 22 states, 22 states have (on average 7.909090909090909) internal successors, (174), 21 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:23,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:08:23,604 INFO L93 Difference]: Finished difference Result 26417 states and 32266 transitions. [2023-12-21 13:08:23,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-21 13:08:23,605 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 7.909090909090909) internal successors, (174), 21 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2023-12-21 13:08:23,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:08:23,633 INFO L225 Difference]: With dead ends: 26417 [2023-12-21 13:08:23,633 INFO L226 Difference]: Without dead ends: 26269 [2023-12-21 13:08:23,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1587, Unknown=0, NotChecked=0, Total=1980 [2023-12-21 13:08:23,643 INFO L413 NwaCegarLoop]: 750 mSDtfsCounter, 2776 mSDsluCounter, 11349 mSDsCounter, 0 mSdLazyCounter, 4160 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2776 SdHoareTripleChecker+Valid, 12099 SdHoareTripleChecker+Invalid, 4200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 4160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:08:23,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2776 Valid, 12099 Invalid, 4200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 4160 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-21 13:08:23,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26269 states. [2023-12-21 13:08:23,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26269 to 17601. [2023-12-21 13:08:23,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17601 states, 17597 states have (on average 1.155651531511053) internal successors, (20336), 17600 states have internal predecessors, (20336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:23,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17601 states to 17601 states and 20336 transitions. [2023-12-21 13:08:23,858 INFO L78 Accepts]: Start accepts. Automaton has 17601 states and 20336 transitions. Word has length 174 [2023-12-21 13:08:23,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:08:23,859 INFO L495 AbstractCegarLoop]: Abstraction has 17601 states and 20336 transitions. [2023-12-21 13:08:23,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.909090909090909) internal successors, (174), 21 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:23,859 INFO L276 IsEmpty]: Start isEmpty. Operand 17601 states and 20336 transitions. [2023-12-21 13:08:23,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-21 13:08:23,872 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:08:23,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:08:23,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2023-12-21 13:08:23,872 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:08:23,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:08:23,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1175900970, now seen corresponding path program 1 times [2023-12-21 13:08:23,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:08:23,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114999025] [2023-12-21 13:08:23,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:08:23,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:08:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:08:24,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:08:24,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:08:24,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114999025] [2023-12-21 13:08:24,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114999025] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:08:24,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:08:24,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-21 13:08:24,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001447950] [2023-12-21 13:08:24,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:08:24,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-21 13:08:24,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:08:24,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-21 13:08:24,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2023-12-21 13:08:24,789 INFO L87 Difference]: Start difference. First operand 17601 states and 20336 transitions. Second operand has 21 states, 21 states have (on average 8.285714285714286) internal successors, (174), 20 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:28,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:08:28,057 INFO L93 Difference]: Finished difference Result 19523 states and 22592 transitions. [2023-12-21 13:08:28,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-21 13:08:28,058 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 8.285714285714286) internal successors, (174), 20 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2023-12-21 13:08:28,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:08:28,075 INFO L225 Difference]: With dead ends: 19523 [2023-12-21 13:08:28,076 INFO L226 Difference]: Without dead ends: 18428 [2023-12-21 13:08:28,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=331, Invalid=1229, Unknown=0, NotChecked=0, Total=1560 [2023-12-21 13:08:28,083 INFO L413 NwaCegarLoop]: 907 mSDtfsCounter, 2899 mSDsluCounter, 9849 mSDsCounter, 0 mSdLazyCounter, 3683 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2899 SdHoareTripleChecker+Valid, 10756 SdHoareTripleChecker+Invalid, 3706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 3683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-21 13:08:28,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2899 Valid, 10756 Invalid, 3706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 3683 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-21 13:08:28,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18428 states. [2023-12-21 13:08:28,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18428 to 17401. [2023-12-21 13:08:28,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17401 states, 17397 states have (on average 1.1572110133931137) internal successors, (20132), 17400 states have internal predecessors, (20132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:28,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17401 states to 17401 states and 20132 transitions. [2023-12-21 13:08:28,358 INFO L78 Accepts]: Start accepts. Automaton has 17401 states and 20132 transitions. Word has length 174 [2023-12-21 13:08:28,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:08:28,358 INFO L495 AbstractCegarLoop]: Abstraction has 17401 states and 20132 transitions. [2023-12-21 13:08:28,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.285714285714286) internal successors, (174), 20 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:28,358 INFO L276 IsEmpty]: Start isEmpty. Operand 17401 states and 20132 transitions. [2023-12-21 13:08:28,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-21 13:08:28,367 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:08:28,368 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:08:28,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2023-12-21 13:08:28,368 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:08:28,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:08:28,369 INFO L85 PathProgramCache]: Analyzing trace with hash 312506324, now seen corresponding path program 1 times [2023-12-21 13:08:28,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:08:28,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957713500] [2023-12-21 13:08:28,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:08:28,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:08:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:08:28,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:08:28,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:08:28,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957713500] [2023-12-21 13:08:28,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957713500] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:08:28,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:08:28,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-21 13:08:28,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264118473] [2023-12-21 13:08:28,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:08:28,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-21 13:08:28,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:08:28,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-21 13:08:28,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2023-12-21 13:08:28,988 INFO L87 Difference]: Start difference. First operand 17401 states and 20132 transitions. Second operand has 19 states, 19 states have (on average 9.157894736842104) internal successors, (174), 18 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:30,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:08:30,143 INFO L93 Difference]: Finished difference Result 23677 states and 28543 transitions. [2023-12-21 13:08:30,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-21 13:08:30,143 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 9.157894736842104) internal successors, (174), 18 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2023-12-21 13:08:30,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:08:30,166 INFO L225 Difference]: With dead ends: 23677 [2023-12-21 13:08:30,167 INFO L226 Difference]: Without dead ends: 23010 [2023-12-21 13:08:30,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=241, Invalid=881, Unknown=0, NotChecked=0, Total=1122 [2023-12-21 13:08:30,175 INFO L413 NwaCegarLoop]: 725 mSDtfsCounter, 2721 mSDsluCounter, 8458 mSDsCounter, 0 mSdLazyCounter, 1886 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2721 SdHoareTripleChecker+Valid, 9183 SdHoareTripleChecker+Invalid, 1925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:08:30,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2721 Valid, 9183 Invalid, 1925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1886 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 13:08:30,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23010 states. [2023-12-21 13:08:30,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23010 to 17503. [2023-12-21 13:08:30,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17503 states, 17499 states have (on average 1.1560660609177666) internal successors, (20230), 17502 states have internal predecessors, (20230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:30,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17503 states to 17503 states and 20230 transitions. [2023-12-21 13:08:30,376 INFO L78 Accepts]: Start accepts. Automaton has 17503 states and 20230 transitions. Word has length 174 [2023-12-21 13:08:30,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:08:30,376 INFO L495 AbstractCegarLoop]: Abstraction has 17503 states and 20230 transitions. [2023-12-21 13:08:30,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.157894736842104) internal successors, (174), 18 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:30,376 INFO L276 IsEmpty]: Start isEmpty. Operand 17503 states and 20230 transitions. [2023-12-21 13:08:30,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-21 13:08:30,386 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:08:30,387 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:08:30,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2023-12-21 13:08:30,387 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:08:30,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:08:30,387 INFO L85 PathProgramCache]: Analyzing trace with hash 468286006, now seen corresponding path program 1 times [2023-12-21 13:08:30,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:08:30,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180055929] [2023-12-21 13:08:30,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:08:30,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:08:30,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:08:31,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:08:31,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:08:31,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180055929] [2023-12-21 13:08:31,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180055929] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:08:31,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:08:31,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-21 13:08:31,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823174590] [2023-12-21 13:08:31,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:08:31,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-21 13:08:31,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:08:31,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-21 13:08:31,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2023-12-21 13:08:31,547 INFO L87 Difference]: Start difference. First operand 17503 states and 20230 transitions. Second operand has 21 states, 21 states have (on average 8.285714285714286) internal successors, (174), 20 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:34,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:08:34,496 INFO L93 Difference]: Finished difference Result 18932 states and 22018 transitions. [2023-12-21 13:08:34,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-21 13:08:34,497 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 8.285714285714286) internal successors, (174), 20 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2023-12-21 13:08:34,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:08:34,512 INFO L225 Difference]: With dead ends: 18932 [2023-12-21 13:08:34,513 INFO L226 Difference]: Without dead ends: 17015 [2023-12-21 13:08:34,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=292, Invalid=1040, Unknown=0, NotChecked=0, Total=1332 [2023-12-21 13:08:34,522 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 2259 mSDsluCounter, 6487 mSDsCounter, 0 mSdLazyCounter, 2341 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2259 SdHoareTripleChecker+Valid, 7144 SdHoareTripleChecker+Invalid, 2351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:08:34,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2259 Valid, 7144 Invalid, 2351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 2341 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-21 13:08:34,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17015 states. [2023-12-21 13:08:34,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17015 to 16894. [2023-12-21 13:08:34,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16894 states, 16890 states have (on average 1.160331557134399) internal successors, (19598), 16893 states have internal predecessors, (19598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:34,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16894 states to 16894 states and 19598 transitions. [2023-12-21 13:08:34,676 INFO L78 Accepts]: Start accepts. Automaton has 16894 states and 19598 transitions. Word has length 174 [2023-12-21 13:08:34,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:08:34,676 INFO L495 AbstractCegarLoop]: Abstraction has 16894 states and 19598 transitions. [2023-12-21 13:08:34,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.285714285714286) internal successors, (174), 20 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:34,677 INFO L276 IsEmpty]: Start isEmpty. Operand 16894 states and 19598 transitions. [2023-12-21 13:08:34,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-21 13:08:34,686 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:08:34,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:08:34,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2023-12-21 13:08:34,686 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:08:34,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:08:34,687 INFO L85 PathProgramCache]: Analyzing trace with hash 2111511590, now seen corresponding path program 1 times [2023-12-21 13:08:34,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:08:34,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996752623] [2023-12-21 13:08:34,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:08:34,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:08:34,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:08:36,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:08:36,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:08:36,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996752623] [2023-12-21 13:08:36,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996752623] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:08:36,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:08:36,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2023-12-21 13:08:36,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401491588] [2023-12-21 13:08:36,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:08:36,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-21 13:08:36,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:08:36,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-21 13:08:36,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2023-12-21 13:08:36,081 INFO L87 Difference]: Start difference. First operand 16894 states and 19598 transitions. Second operand has 26 states, 26 states have (on average 6.6923076923076925) internal successors, (174), 25 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:39,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:08:39,216 INFO L93 Difference]: Finished difference Result 17385 states and 20260 transitions. [2023-12-21 13:08:39,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-21 13:08:39,217 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.6923076923076925) internal successors, (174), 25 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2023-12-21 13:08:39,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:08:39,233 INFO L225 Difference]: With dead ends: 17385 [2023-12-21 13:08:39,233 INFO L226 Difference]: Without dead ends: 16660 [2023-12-21 13:08:39,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=389, Invalid=1963, Unknown=0, NotChecked=0, Total=2352 [2023-12-21 13:08:39,239 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 1170 mSDsluCounter, 9942 mSDsCounter, 0 mSdLazyCounter, 3499 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1170 SdHoareTripleChecker+Valid, 10539 SdHoareTripleChecker+Invalid, 3508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:08:39,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1170 Valid, 10539 Invalid, 3508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 3499 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-21 13:08:39,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16660 states. [2023-12-21 13:08:39,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16660 to 16648. [2023-12-21 13:08:39,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16648 states, 16645 states have (on average 1.1622108741363772) internal successors, (19345), 16647 states have internal predecessors, (19345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:39,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16648 states to 16648 states and 19345 transitions. [2023-12-21 13:08:39,394 INFO L78 Accepts]: Start accepts. Automaton has 16648 states and 19345 transitions. Word has length 174 [2023-12-21 13:08:39,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:08:39,394 INFO L495 AbstractCegarLoop]: Abstraction has 16648 states and 19345 transitions. [2023-12-21 13:08:39,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.6923076923076925) internal successors, (174), 25 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:39,394 INFO L276 IsEmpty]: Start isEmpty. Operand 16648 states and 19345 transitions. [2023-12-21 13:08:39,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-21 13:08:39,403 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:08:39,403 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:08:39,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2023-12-21 13:08:39,404 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:08:39,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:08:39,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1054278243, now seen corresponding path program 1 times [2023-12-21 13:08:39,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:08:39,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716819994] [2023-12-21 13:08:39,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:08:39,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:08:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:08:39,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:08:39,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:08:39,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716819994] [2023-12-21 13:08:39,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716819994] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:08:39,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:08:39,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-21 13:08:39,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209221094] [2023-12-21 13:08:39,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:08:39,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-21 13:08:39,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:08:39,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-21 13:08:39,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-12-21 13:08:39,968 INFO L87 Difference]: Start difference. First operand 16648 states and 19345 transitions. Second operand has 17 states, 17 states have (on average 10.235294117647058) internal successors, (174), 16 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:41,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:08:41,402 INFO L93 Difference]: Finished difference Result 19240 states and 22617 transitions. [2023-12-21 13:08:41,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-21 13:08:41,402 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 10.235294117647058) internal successors, (174), 16 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2023-12-21 13:08:41,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:08:41,418 INFO L225 Difference]: With dead ends: 19240 [2023-12-21 13:08:41,418 INFO L226 Difference]: Without dead ends: 18250 [2023-12-21 13:08:41,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=434, Invalid=1288, Unknown=0, NotChecked=0, Total=1722 [2023-12-21 13:08:41,423 INFO L413 NwaCegarLoop]: 953 mSDtfsCounter, 2131 mSDsluCounter, 10620 mSDsCounter, 0 mSdLazyCounter, 2558 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2131 SdHoareTripleChecker+Valid, 11573 SdHoareTripleChecker+Invalid, 2604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 13:08:41,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2131 Valid, 11573 Invalid, 2604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2558 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 13:08:41,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18250 states. [2023-12-21 13:08:41,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18250 to 17066. [2023-12-21 13:08:41,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17066 states, 17063 states have (on average 1.158823184668581) internal successors, (19773), 17065 states have internal predecessors, (19773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:41,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17066 states to 17066 states and 19773 transitions. [2023-12-21 13:08:41,568 INFO L78 Accepts]: Start accepts. Automaton has 17066 states and 19773 transitions. Word has length 174 [2023-12-21 13:08:41,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:08:41,568 INFO L495 AbstractCegarLoop]: Abstraction has 17066 states and 19773 transitions. [2023-12-21 13:08:41,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 10.235294117647058) internal successors, (174), 16 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:08:41,569 INFO L276 IsEmpty]: Start isEmpty. Operand 17066 states and 19773 transitions. [2023-12-21 13:08:41,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-21 13:08:41,577 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:08:41,577 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:08:41,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2023-12-21 13:08:41,577 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-21 13:08:41,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:08:41,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1021948014, now seen corresponding path program 1 times [2023-12-21 13:08:41,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:08:41,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597560796] [2023-12-21 13:08:41,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:08:41,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:08:41,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:08:42,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:08:42,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:08:42,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597560796] [2023-12-21 13:08:42,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597560796] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:08:42,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:08:42,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-12-21 13:08:42,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946107529] [2023-12-21 13:08:42,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:08:42,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-21 13:08:42,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:08:42,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-21 13:08:42,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=637, Unknown=0, NotChecked=0, Total=702 [2023-12-21 13:08:42,971 INFO L87 Difference]: Start difference. First operand 17066 states and 19773 transitions. Second operand has 27 states, 27 states have (on average 6.444444444444445) internal successors, (174), 26 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)